Ifugao (Ilocano: Probinsia ti Ifugao; Tagalog: Lalawigan ng Ifugao) is a landlocked province of the Philippines in the Cordillera Administrative Region in Luzon. Its capital is Lagawe and it borders Benguet to the west, Mountain Province to the north, Isabela to the east, and Nueva Vizcaya to the south.
|Province of Ifugao|
Location in the Philippines
|Region||Cordillera Administrative Region (CAR)|
|Founded||June 18, 1966|
|• Type||Sangguniang Panlalawigan|
|• Governor||Jerry U. Dalipog|
|• Vice Governor||Glenn D. Prudenciano|
|• Representative||Solomon R. Chungalao|
|• Total||2,628.21 km2 (1,014.76 sq mi)|
|Area rank||50th out of 81|
|Highest elevation||2,926 m (9,600 ft)|
(2015 census) 
| • Estimate |
|• Rank||72nd out of 81|
|• Density||77/km2 (200/sq mi)|
|• Density rank||74th out of 81|
|• Independent cities||0|
|• Component cities||0|
|• Districts||Lone district of Ifugao|
|Time zone||UTC+8 (PHT)|
|IDD : area code||+63 (0)74|
|ISO 3166 code||PH-IFU|
The Rice Terraces of the Philippine Cordilleras and Banaue Rice Terraces are the main tourist attractions in the province. These terraces are believed to have been hand-carved into the mountains 2,000 years ago to plant rice. However, recent research by carbon dating suggests that they were built much later. In 1995, the Rice Terraces of the Philippine Cordilleras were declared as a UNESCO World Heritage Site. In 2008 and 2015, the Hudhud chants of the Ifugao and the Punnuk (Tugging rituals and games) were inscribed in the UNESCO Intangible Cultural Heritage Lists.
Ifugao is named after the term i-pugo ("i" [from/people] and pugo [hill]), which translates to people of the hill. Alternatively, the province's name may have come from the word pugaw, which means "the cosmic earth", ipugaw then referring to "mortals". Finally, the name may have been derived from ipugo, a type of grain in local mythology given to the people by Matungulan, the god of grains.
Prior to colonization, Ifugao was a massive highland plutocracy, among the most sophisticated and prosperous of its kind in the whole archipelago and one of the two grandest highland plutocracies in Luzon. The state existed for over 2,000 years and have built massive rice terraces that would be a symbol of the province in later time. There were no monarchs in the state. The state was ruled by its council of elders which led the state into a peaceful and prosperous plutocracy which developed one of the best agricultural technologies in Asia at its time. The state consisted of various subgroups which had similar yet somewhat distinct culture and traditions. Conflicts among the Ifugao people were resolved in the most peaceful way possible. Unlike most of the highland plutocracies in the Cordilleras at the time, the Plutocracy of Ifugao had the least conflict with lowland settlers.
The Spanish had great difficulty in taking over Ifugao, like most of the Cordilleras due to the fierce belief of the Cordillera people of their rights since ancient times. The Ifugao battled colonizers for hundreds of years, even after the state was colonized and was transformed into a part of Nueva Vizcaya province of the Spanish-administered Philippines. In 1891, the Spanish government established Quiangan as a comandancia-politico-militar for the Ifugao area. The Spanish occupation in the province ended with the outbreak of the Philippine Revolution.
In the Northern Philippines, the Ifugao are one of many minority ethnolinguistic groups best documented by ethnohistoric and anthropological scholars. However, there is a dearth of historical information in the region particularly during the Spanish conquest. Changes in both demographics and cultural orientation among existing communities were to be expected during the time as certain groups resulted to migration towards the highlands. According to studies, the Ifugao succeeded multiple times resisting against the Spanish at conquest. The groups that migrated to the highlands were believed to be those that resisted the Spanish colonial control, which became prevalent in the lowlands. According to Acabado, the rugged nature of the highlands around the Ifugao region did not out rightly provide a hindrance to the Spanish conquest. Other regions that had similar rugged environment as found in Ifugao were subjected to colonial rule. Archeological research shows Ifugao practices of successful resistance by strengthening their political and economic resources. Spanish conquest and population increase was the source of shifting to wet-rice agriculture.
On August 18, 1908, Ifugao was separated from Nueva Vizcaya and, along with Amburayan, Apayao, Benguet, Bontoc, Kalinga and Lepanto, was annexed to the newly created Mountain Province established by the Philippine Commission with the enactment of Act No. 1876.
World War IIEdit
Ifugao became the center of warfare in the last year of World War II when Gen. Tomoyuki Yamashita launched his last stand against the American and Philippine Commonwealth forces at Mount Napulawan. He informally surrendered to Captain Grisham of the 6th US Army in the Philippines based in Kiangan, then formally surrendered at Camp John Hay on 3 Sept. 1945.
On June 18, 1966, Republic Act No. 4695 was enacted, and Ifugao was converted into a regular province when the huge Mountain Province was split into four (the other three being Benguet, Mountain Province, and Kalinga-Apayao). Ifugao and Kalinga-Apayao were placed under the jurisdiction of the Cagayan Valley region. The capital was moved from Kiangan to Lagawe due to the harsh landscape of Kiangan which made it unsuitable for public transportation and as a capital.
Post-martial law eraEdit
Since 1992, the province has observed every September 2 as "Victory Day", commemorating the valor of Philippine war veterans and the surrender of General Yamashita in the municipality of Kiangan on September 2, 1945.
In 1995, the Batad Rice Terraces, Bangaan Rice Terraces (both in Banaue), Mayoyao Rice Terraces (in Mayoyao), Hungduan Rice Terraces (in Hungduan) and Nagacadan Rice Terraces (in Kiangan, Ifugao) were inscribed by UNESCO as a World Heritage Site under the collective name "Rice Terraces of the Philippine Cordilleras".
In 2001, the Hudhud Chants of the Ifugao was chosen as one of the 11 Masterpieces of the Oral and Intangible Heritage of Humanity. It was then formally inscribed as a UNESCO Intangible Cultural Heritage in 2008.
In 2013, the official Intangible Heritage Book of the Philippine was published, and 13 of its elements were from Ifugao.
In 2014, the Philippines joined other Asian nations in establishing the support and submission of the "Tug of war" — a multinational cultural heritage or Tugging rituals and games, an Intangible Cultural Heritage that encompasses tug-of-war games in Vietnam, Cambodia, and the Philippines. The initial move of the Philippines started in 2013. The Philippines' part in the new element is represented by the tug-of-war of the Ifugaos (in Barangay Hapao, Municipality of Hungduan) called the punnuk. The element is expected to be declared as a UNESCO Intangible Cultural Heritage in 2015.
Since the 20th century, the province has been central to the archaeological research of various international institutions, mostly from the United States and the Philippines. A major discovery was the archaeological site of Kiangan, which proved the oral tradition of the Ifugao that the first settlement in the province was in Kiangan.
Ifugao covers a total area of 2,628.21 square kilometres (1,014.76 sq mi) occupying the southeastern section of the Cordillera Administrative Region in Luzon. The province is bordered by Benguet to the west, Mountain Province to the north, Isabela to the east, and Nueva Vizcaya to the south.
Situated within the Cordillera Central mountain range, Ifugao is characterized by rugged terrain, river valleys, and massive forests.
The rainy season in Ifugao begins in July and runs through January. The weather remains cool from November to February.
|Source: Philippine Statistics Authority   |
The population of Ifugao in the 2015 census was 202,802 people,  with a density of 77 inhabitants per square kilometre or 200 inhabitants per square mile.
Based on the 2000 census survey, Ifugao comprised 67.91% (109,659) of the total provincial population of 161,483. Other ethnic groups in the province included the Ilocanos at 13.73% (22,171), Kalahan at 8.64% (13,946), Ayangan at 6.15% (9,935), and Kankanaey at 0.64% (1,037).
The natives of Ifugao province are called Ifugaos, but mistakenly called by non-Cordilleran as Igorots. Ifugaos, despite the similarities in some cultural traditions and practices, are considered a separate ethnic group from Igorots.
The Ifugao people have an indigenous religion unique to their traditional culture, and highly significant to the preservation of their life ways and valued traditions. They believe in the existence of thousands of gods, which may enter specific sacred objects such as the bul-ul.
- Kabunian: supreme deity and chief among the high ranking deities above the skyworld; also referred to as Mah-nongan, chief god generally referred to as the honorary dead and creator of all things; in specific communities, both the names Mah-nongan and Kabunian (also Afunijon) are understood as the name of one chief deity, while in others, they are used to refer to many deities
- Afunijon: also a general term referred to the deities of heaven, which is also called Afunijon
- Mah-nongan: also a general term for deities who are given animal sacrifices
- Ampual: the god of the fourth skyworld who bestowed animals and plants on the people; controls the transplanting of rice
- Bumingi: in charge of worms, one of the eleven beings importuned to stamp out rice pests
- Liddum: the only deity who inhabits the realm called Kabunian; communicates directly with humans on earth; chief mediator between the people and other gods
- Lumadab: has the power to dry up the rice leaves, one of the eleven beings importuned to stamp out rice pests
- Mamiyo: the stretcher of skeins, one of the twenty-three deities presiding over the art of weaving
- Monlolot: the winder of thread on the spindle, one of the twenty-three deities presiding over the art of weaving
- Puwok: controls the dread typhoons
- Yogyog: a causer of earthquakes; dwells in the underworld
- Alyog: a causer of earthquakes; dwells in the underworld
- Kolyog: the god of earthquakes
- Makalun: spirits that serve the function as messengers of the gods
- Namtogan: the paraplegic god of good fortune whose presence made rice harvests and community livestock bountiful; when the humans he was staying with at Ahin began neglecting the bulul, he left, causing a curse of misfortunes; the people persuaded him to return, where he responded by teaching the people how to create bululs and how to do the rituals for the statues, effectively lifting the curse
- Bulol: household divinities that are the souls of departed ancestors; usually depicted as carved wooden statues stored in the rice granary; the ancestral images guard the crops, make the rice harvest plentiful, and protects the rice from pests and thieves and from being too quickly consumed
- Nabulul: spouse of Bugan; a god who possesses or lives in Bulul figures; guards the rice and make the rice harvest plentiful
- Bugan: spouse of Nabulul; a goddess who possesses or lives in Bulul figures; guards the rice and make the rice harvest plentiful
- Gatui: divinities associated with practical jokes, but have a malevolent side that feast on souls and cause miscarriages
- Tagbayan: divinities associated with death that feast on human souls that are guarded by two headed monsters called kikilan
- Imbayan: also called Lingayan; divinities who guide souls after they die
- Himpugtan: an Imbayan divinity who can terminate those that displease him
- Munduntug: divinities from the mountains who cause hunters to be lost
- Banig: spirits of the hillsides and caves; among the Mayayao, the Banig take in the form of an animal who does not harm anyone, despite the people being afraid of their manifestation
- Mun-apoh: deified ancestral spirits who are guardians and sources of blessings provided by the living; they are respected, however, their blessings could also be turned into a curse
- Mahipnat: great spirits of sacred places
- Bibao: spirits of ordinary places
- Halupi: divinities of remembrance
- Fili: divinities of property
- Dadungut: divinities who dwell in graveyards and tombs
- Makiubaya: divinities who watch over the gates of the village
- Spirits of sickness
- Binudbud: spirits that are invoked during feasts to quell the passions of men
- Kolkolibag: spirits who cause difficult labor
- Indu: spirits that make omens
- Hidit: divinities who give punishments to those that break taboos
- Puok: a kind of Hidit who use winds to destroy the dwellings of miners that break taboos
- Hipag: spirits of war that give soldiers courage on the field of war but are ferocious and cannibalistic
- Llokesin: the god of rats who figures in the myth of the first orange tree
- Bumabakal: the rejected corpse divinity of the skyworld; his dead body resides on top of Mount Dukutan, where his bodily fluids cause boils
- Kabigat: the god who sent a deluge which flooded the earth; married to the goddess Bugan
- Bugan: a goddess married to Kabigat; her children are a son named Wigan and a daughter also named Bugan
- Bugan: daughter of Bugan and Kabigat; stranded on earth after the great deluge, and became one of the two ancestors of mankind
- Wigan: son of Bugan and Kabigat; stranded on earth after the great deluge, and became one of the two ancestors of mankind
- Wigan: the god of good harvest
- Dumagid: a god who lived among the people of Benguet; married a mortal woman named Dugai and had a son named Ovug
- Ovug: son of Dumagid and Dugai; was cut in half by his father, where one of his halves was reanimated in the skyworld, and the other on earth; the voice of the skyworld's Ovug is the source of lightning and sharp thunder, while the voice of the earth's Ovug is the source of low thunder
- Bangan: the god who accompanied Dumagid in claiming Ovug from the earth
- Aninitud chalom: deity of the underworld, whose anger is manifested in a sudden shaking of the earth
- Aninitud angachar: deity of the sky world; causes lightning and thunder when unsatisfied with offerings
- Mapatar: the sun deity of the sky in charge of daylight
- Bulan: the moon deity of the night in charge of nighttime
- Mi’lalabi: the star and constellation deites
- Pinacheng: a group or class of deities usually living in caves, stones, creeks, rocks, and in every place; mislead and hide people
- Fulor: a wood carved into an image of a dead person seated on a death chair; an antique which a spirit in it, who bring sickness, death, and unsuccessful crops when sacrifices are not offered
- Inamah: a wooden plate and a home of spirits; destroying or selling it will put the family in danger
- Dugai: the mortal mother of the split god Ovug; wife of the god Dumagid
- Humidhid: the headman of a village in the upstream region of Daya who carved the first bulul statues from the haunted or supernatural tree named Bongbong
- Unnamed Shaman: prayed to the deities, Nabulul and Bugan, to possess or live in the bulul statues carved by Humidhid
- Wife of Namtogan: a mortal woman who the god Namtogan married when he stayed at the village of Ahin
Roman Catholicism has a growing influence in the province with approximately 60% of the population being converted by missionaries. In most areas, especially at the east and south of the province, indigenous traditions have degraded due to the influx of Christianity. In 2014, the Apostolic Vicariate of Bontoc-Lagawe recorded a 61.5% Roman Catholic adherence, a stunning degree of destruction of traditional belief systems. The most significant religion other than Roman Catholicism is Protestantism that make up 20%-30% of the population and are mostly found in the central and south-western parts of this province. Other religions includes animism
Wet rice cultivation and ritual feastingEdit
Shifting to wet rice cultivation is one factor that intensified the social ranking that was already present among the Ifugao society. Those who adopted wet rice cultivation were able to consolidate political resources. “In Ifugao, the adoption of wet-rice agriculture is at the forefront in discussions regarding social ranking vis-à-vis prestige economy.”  The Ifugao social status is based on their rice lands and ability to sponsor feasts. One reason being is that an individual needs to be skilled in mobilizing rice terraces, and because rice terraces require labor-intensive work. Stephen Acabado states that since the village was increasing in population, the shift to wet rice cultivation, increase of exotic goods procurement, and finally increase in the distribution of ritual animals indicates “political elaboration as a response to Spanish conquest.” In addition, according to Queeny G. Lapeña and Stephen B. Acabado, in order to successfully resist against a colonizing power it requires a constructive military organization within a complete polity. The Spanish took conquest of the Magat Valley and between 1600 CE and 1700 CE it drove the Ifugao to strategically resettle in the interior of the Cordillera Mountains. Wet-rice agriculture was adopted soon after, and extensive rice terraces were built. This was a subsistence shift for the Ifugao because they cultivated taro before the start of the wet rice cultivation. The author emphasizes that the Ifugao people kept their culture and identity alive by spending large amounts of time in rice fields, since they treated them as ritual areas to “reinforce community solidarity."
Furthermore, archeologists state that there was an increase of pig consumption. This increase had to do with the increase in ritual feasting. In the Old Kiyyangan Village, there were morphometric evidence of the vast increase in pig consumption. Stephen Acabado states that since the village was increasing in population the shift to wet rice cultivation, increase of exotic goods procurement, and finally increase in the distribution of ritual animals indicates “political elaboration as a response to Spanish conquest”. In the article Resistance through rituals: The role of Philippine “native pig” (Sus scrofa) in Ifugao feasting and socio-political organization, the authors conclude that domesticated pigs were intertwined in the maintenance of a rank social order that came into view from the Ifugao's resistance against Spanish colonialism.
The domestication of pigs and terrace cultivation within the Ifugao region provides a perfect scenario of how societies respond to challenges and needs in their immediate environment. Since wild pigs were considered unfit for rituals, emphasis was placed towards the domestication pigs, which illustrated an individual's social status. The bigger the feast, the higher regard a person was likely to receive from both kin and non-kin members as the ceremony would involve the sharing of sacrificed pig meat. The relationship between the elites who in this case owned the land and the lower social classes worsened during the period after the Spanish conquest. Social immobility became more apparent, since to have enough rice to trade for a pig, one would need to own a rice terrace and vice versa. The cultural value attached to the pig and rice cultivation guaranteed the survival of the communities, in spite of moving to the highlands as they migrated further from the invading Spanish. The importance of rituals and ceremonies meant that people were pushed into practicing pig domestication not merely as a source of food, but as a way of honoring their culture. On the other hand, the cultivation of rice on the terraces required extensive organization of labor, which led to the creation of socio-political shifts.
The Spanish first described the Ifugao rice terraces in 1801. Though as William Scott notes, "These impressive stone-walled fields, irrigated for both rice and taro, had been known from the time of the first expeditions in to Kiangan in the 1750s...":2
Ifugao culture revolves around rice, which is considered a prestige crop. There is an elaborate and complex array of rice culture feasts inextricably linked with taboos and intricate agricultural rites, from rice cultivation to rice consumption. Harvest season calls for grandiose thanksgiving feasts, while the concluding harvest rites tungo or tungul (the day of rest) entail a strict taboo of any agricultural work. Partaking of the rice wine (bayah), rice cakes, and moma (mixture of several herbs, powdered snail shell and betel nut/arecoline which is used as a chewing gum to the Ifugaos) is an indelible practice during the festivities and ritual activities. Agricultural terracing and farming are the principal means of livelihood. Their social status is measured by the number of rice field granaries, family heirlooms, gold earrings, and carabaos (water buffaloes). Prestige is also conferred through time and tradition.
A prayer is said by an elderly woman when harvest begins, directed towards Cabunian, the goddess of rice. Then, a protective prayer is said before the rice is placed in the granary.:21
The Ifugao solar calendar included a 365-day year, broken down into 13 months of 28 days each, plus one extra day.:37
The more affluent, known as kadangyan or baknang, were usually generous by nature, lending rice to poor neighbors in time of food shortage(s) and/or hardship(s), in return for labor. Acting as village or spiritual leaders, creditors or commercial managers, these rich families exhibited their wealth by providing for many feasts, or cañaos.
William Scott describes the details associated with the Ifugao house, "Square in floor plan, it is elevated to about shoulder height by four posts (tukud), around which are fitted cynlindrical wooden rat-guards (halipan), carrying two transverse girders (kuling) which support three floor joists into which the floorboards (dotal) are fitted and wallboards (goab and pamadingan) and studs (bagad) are mortised. The four studs, placed at the corner of the house, are mortised at their upper end into four tie-beans or purlins (wanan) which form a square to carry much of the weight of the roof as well as the central crossbeam (pumpitolan) on which stand two queenposts (taknang). These queenposts terminate in a small square (ambubulan) which supports the upper ends of the rafters (bughol), the roof being a true pyramid in form with four triangular sides and thus rising to an apex without any ridgepole. The wallboards are rabbeted into a transverse beam (huklub) at waist or chest height, at which point a shelf (patie) is fitted between them and the roof, whose eaves descend as low as the level of the floor. Above the tie beams a reed floor or platform is often fitted to make an attic-like storage space (palan) for unthreshed rice. Wooden panels close doorways on two opposite sides of the house, and entrance is gained by means of a ladder which is removed at night. This type of house is called bale (or fale), but the same basic building with a few modifications - the wallboards extend up to the roof, there is only one door, and the whole thing is smaller - serves as a rat-proof granary (alang)."
Furthermore, their culture was known for their legal system, based on the elders of the village, amama-a. Their words had the effect of law, without appeal. The jury, agom, consisted of those articulate, mansapit, elders. If the jury could not decide a case, trial by ordeal was invoked. The logic being that the gods and goddesses, Kabunian, would not allow the innocent to suffer.:115–120
Ifugao culture values kinship, family ties, religious and cultural beliefs. Ifugao are unique among all ethnic groups in the mountain province for their narrative literature such as the hudhud, an epic dealing with hero ancestors sung in a poetic manner. Also unique to the Ifugao is their woodcarving art, most notably the carved granary guardians bulul and the prestige bench of the upper class, the hagabi. Their textiles are renowned for their sheer beauty, colorful blankets and clothing woven on looms.
In order to understand Philippine prehistory and Southeast Asian patterns, it is critical for anthropologists and Southeast Asian scholar to date terraces. It is notoriously difficult to date field terraces, however, it is highly significant to know the history of it. One important method is the use of the Bayesian model, which applied radiocarbon dates to date tiered rice fields in the Northern Philippines. Archaeologists predict that these terraces were built during the 16th century by individuals who were migrating inland and upland from the Spanish. Through modification relative dating techniques have been newly developed to be radiometric dating methods, which has become easily accessible. Due to relying on ‘stratigraphic superposition’ and 14C dating, there has been a drawback for arbitrary interpretation. The calibrated information that was collected through laboratory results, which might not find accoradnce with the archeological incident that is being dated. Bayesian modeling is beneficial when dating rice terraces because when dating agricultural terrance it is essential to know about the layers and the chaotic mixtures of the materials. One reason the Bayesian modelling is benefitital and a powerful approach is because it has the ability to restore a variety of chronological information. According to Stephen Acabado, “The Bayesian approach starts with what is known about the relative deposition order of the two layers and then modifies this knowledge in the light of the 14C dating information."  Although 14C is a dating method that is frequently used by archeologists, it used to give an approximate period for when the terrace walls were built and used.
UNESCO recognitions in IfugaoEdit
UNESCO has inscribed two Ifugao elements in the Representative List of the Intangible Cultural Heritage of Humanity in 2008 and 2015, respectively. UNESCO has also inscribed one Ifugao site with five properties in the World Heritage Site in 1995.
Rice Terraces of the Philippine CordillerasEdit
"For 2,000 years, the high rice fields of the Ifugao have followed the contours of the mountains. The fruit of knowledge handed down from one generation to the next, and the expression of sacred traditions and a delicate social balance, they have helped to create a landscape of great beauty that expresses the harmony between humankind and the environment."
The inscription has five sites: the Batad Rice Terraces, Bangaan Rice Terraces (both in Banaue), Mayoyao Rice Terraces (in Mayoyao), Hungduan Rice Terraces (in Hungduan) and Nagacadan Rice Terraces (in Kiangan), all in the Ifugao Province, the Philippines. The Banaue Rice Terraces is not included in the inscription, but may be included through an extension nomination to UNESCO, along with other rice terraces sites in other Philippine Cordillera provinces.
Hudhud Chants of the IfugaoEdit
In 2001, the Hudhud ni Aliguyon (or Hudhud Chants of the Ifugao) became one of the first 11 Masterpieces of the Oral and Intangible Heritage of Humanity in 2001. The element was inscribed in the Representative List of the Intangible Cultural Heritage of Humanity in 2008. UNESCO describes the element as follows:
"The Hudhud consists of narrative chants traditionally performed by the Ifugao community, which is well known for its rice terraces extending over the highlands of the northern island of the Philippine archipelago. It is practised during the rice sowing season, at harvest time and at funeral wakes and rituals. Thought to have originated before the seventh century, the Hudhud comprises more than 200 chants, each divided into 40 episodes. A complete recitation may last several days. Since the Ifugao’s culture is matrilineal, the wife generally takes the main part in the chants, and her brother occupies a higher position than her husband. The language of the stories abounds in figurative expressions and repetitions and employs metonymy, metaphor and onomatopoeia, rendering transcription very difficult. Thus, there are very few written expressions of this tradition. The chant tells about ancestral heroes, customary law, religious beliefs and traditional practices, and reflects the importance of rice cultivation. The narrators, mainly elderly women, hold a key position in the community, both as historians and preachers. The Hudhud epic is chanted alternately by the first narrator and a choir, employing a single melody for all the verses. The conversion of the Ifugao to Catholicism has weakened their traditional culture. Furthermore, the Hudhud is linked to the manual harvesting of rice, which is now mechanized. Although the rice terraces are listed as a World Heritage Site, the number of growers has been in constant decline.The few remaining narrators, who are already very old, need to be supported in their efforts to transmit their knowledge and to raise awareness among young people."
Tugging Games and Ritual: Punnuk of the IfugaoEdit
The Punnuk of the Ifugao was inscribed in the Representative List of the Intangible Cultural Heritage of Humanity in 2015 under the multinational inscription of the Tugging Rituals and Games element.
- "List of Provinces". PSGC Interactive. Makati City, Philippines: National Statistical Coordination Board. Archived from the original on 21 January 2013. Retrieved 20 December 2013.
- "POPULATION PROJECTIONS BY REGION, PROVINCE, CITIES AND MUNICIPALITIES, 2020-2025". www.doh.gov.ph. Department of Health. August 27, 2020. Retrieved October 16, 2020.
- Census of Population (2015). Highlights of the Philippine Population 2015 Census of Population. PSA. Retrieved 20 June 2016.
- Cabreza, Vincent (July 15, 2013). [newsinfo.inquirer.net/445493/for-ifugao-rice-terraces-age-should-not-matter "For Ifugao rice terraces, age should not matter"] Check
|url=value (help). Inquirer.net.
- "Rice Terraces of the Philippine Cordilleras". UNESCO World Heritage Centre. Retrieved 2 January 2015.
- "Facts & Figures: Ifugao Province". Philippine Statistics Authority - National Statistical Coordination Board. Department of the Interior and Local Government - Cordillera Administrative Region. Retrieved 2 January 2015.
- Lancion Jr., Conrado M.; de Guzman, Rey (cartography) (1995). "The Provinces". Fast Facts about Philippine Provinces (The 2000 Millenium ed.). Makati, Metro Manila: Tahanan Books. pp. 76–77. ISBN 971-630-037-9. Retrieved 16 January 2015.
- "Natural Attractions found in Atok". Province of Benguet. Retrieved 13 August 2013.
- Worcester, Dean C.; Philippine Commission (1908). Seventh Annual Report of the Secretary of the Interior to the Philippine Commission for the Fiscal Year Ended June 30, 1908 (Digitized by Google on 23 Nov 2005 (Original file from the University of Michigan)). Manila: U.S. Government Printing Office. pp. 17–19. Retrieved 2 January 2015.
- Keesing, Felix Maxwell; Keesing, Marie Margaret; Keesing, Marie Martin; Institute of Pacific Relations (contributor); International Research Committee (contributor) (1934). Taming Philippine Headhunters: A Study of Government and of Cultural Change in Northern Luzon. Stanford University Press. p. 69. ISBN 9780804721103. Retrieved 2 January 2015.
- Felix M., Keesing (1962). "The Upper Cagayan Area". The Ethnohistory of Northern Luzon. Stanford University Press. p. 297. ISBN 9780804700498. Retrieved 2 January 2015.
- Lapena and Acabado, Queeny and Stephen (2016). "Resistance through rituals: The role of Philippine "native pig" (Sus scrofa) in Ifugao feasting and socio-political organization". Journal of Archaeological Science: Reports. 13: 583–594. doi:10.1016/j.jasrep.2017.05.009.
- National Historical Institute (Philippines) [contributor] (1978). Kasaysayan, Volume 3, Issues 1-4 (Digitized by Google on 26 Sep 2009). National Historical Institute. p. 16. Retrieved 2 January 2015.
(Original file from the University of Michigan)
- Ingles, Raul Rafael (2008). 1908 :The Way it Really was : Historical Journal for the UP Centennial, 1908-2008. Diliman, Quezon City: University of the Philippines Press. p. 330. ISBN 978-9715425803. Retrieved 2 January 2015.
- Act No. 1876., August 18, 1908 Supreme Court E-Library
- Bagamaspad, Anavic; Hamada-Pawid, Zenaida (1985). A People's History of Benguet. Baguio Printing & Publishing Company, Inc. pp. 297–300.
- "Republic Act No. 4695: An Act Creating the Provinces of Benguet, Mountain Province, Ifugao and Kalinga-Apayao". Chan Robles Virtual Law Library. Retrieved 18 September 2014.
- "Historical Background". Provincial Government of Apayao. 15 April 2013. Archived from the original on 4 January 2015. Retrieved 3 January 2015.
- "Regional Profile: Cordillera Administrative Region (CAR)". CountrySTAT Philippines. Archived from the original on 22 October 2014. Retrieved 18 September 2014.
- "The Cordillera Administrative Region (CAR)". Department of Agriculture. Retrieved 18 September 2014.
- "Republic Act No. 07173: An Act Creating the Municipality of Asipulo in the Province of Ifugao" (PDF). House of Representatives of the Philippines. Archived from the original (PDF) on 2 January 2015. Retrieved 2 January 2015.
- "Municipality of Asipulo, Ifugao". Department of the Interior and Local Government - Cordillera Administrative Region. 29 April 2013. Archived from the original on 6 February 2015. Retrieved 2 January 2015.
- "PVAO recognizes Ifugao town for promoting valor and heroism of veterans". Philippine Information Agency. Philippine Information Agency - Cordillera Administrative Region. 9 December 2014. Archived from the original on 2 January 2015. Retrieved 2 January 2015.
- "Re-enactment of WWII episodes steal show during Victory Day Celebration in Ifugao". Philippine Information Agency. 3 September 2012. Archived from the original on 21 August 2016. Retrieved 2 January 2015.
- Bitog, Rubyloida (18 August 2012). "Ifugaos to mark liberation". Sun.Star Baguio. Retrieved 2 January 2015.
- "Proclamation of Masterpieces of the Oral and Intangible Heritage of Humanity; Hudhud Chants of the Ifugao". UNESCO. 18 May 2001. Retrieved 1 April 2016.
The hudhud is recited and chanted among the Ifugao people - known for their rice terraces - during the sowing and harvesting of rice, funeral wakes and other rituals. Estimated to have originated before the 7th century, the hudhud - consisting of some 40 episodes - often take three or four days to recite.
- "Hudhud chants of the Ifugao; Inscribed in 2008 (3.COM) on the Representative List of the Intangible Cultural Heritage of Humanity (originally proclaimed in 2001)". UNESCO. Retrieved 1 April 2016.
- Bersola, Camille (2 January 2011). "The hudhud of Ifugao: Enchanting chanting". The Philippine Star. Retrieved 1 April 2016.
Bringing more cultural pride, this Ifugao tradition had also received an accolade from the United Nations Education, Scientific and Cultural Organization (UNESCO). In 2001, it won the title of “Masterpieces of the Oral and Intangible Heritage of Humanity” given to 19 outstanding cultural forms of expression from the different regions of the world. In Asia, UNESCO honored six masterpieces, among them, the hudhud chants of the Ifugao of Northern Luzon.
- Codamon, Daniel B. (22 May 2015). "Kiangan as the heritage town of Ifugao". Sun.Star Baguio. Retrieved 1 April 2016.
Archaeological studies show Kiangan indeed is the cradle of Ifugao race and civilization. In June 2012, after more than three weeks of excavation, the Ifugao Archaeological Project (IAP) reported its findings on the "Old Kiyyangan Village" that constitutes the 1st Field Season of the IAP, a community-led project with the Save the Ifugao Terraces Movement (SITMO), the local government of Kiangan, National Museum of the Philippines, University of the Philippines Archaeological Studies Program and the University of Guam.
- "Province: Ifugao". PSGC Interactive. Quezon City, Philippines: Philippine Statistics Authority. Retrieved 8 January 2016.
- Census of Population and Housing (2010). Population and Annual Growth Rates for The Philippines and Its Regions, Provinces, and Highly Urbanized Cities (PDF). NSO. Retrieved 29 June 2016.
- "Ifugao: Five Economically Active Persons Support Four Dependents". Philippine Statistics Authority. Philippine Statistics Authority. 4 March 2002. Archived from the original on 5 March 2012. Retrieved 2 January 2015.
- Census of Population and Housing (2010). "Cordillera Administrative Region (CAR)". Total Population by Province, City, Municipality and Barangay. NSO. Retrieved 29 June 2016.
- Jocano, F. L. (1969). Philippine Mythology. Quezon City: Capitol Publishing House Inc.
- Zaide, S. M. (1999). The Philippines: A Unique Nation. All-Nations Publishing.
- Bimmolog, H., Sallong, L., Montemayor, L. (2005). The Deities of the Animistic Religion of Mayaoyao, Ifugao.
- Beyer, H. O. (1913). Origin Myths Among the Mountain Peoples of the Philippines. Philippine Journal of Science, 85-117.
- Karlston, L. (2018). Indigenous paraplegic divinity: The story of Namtogan. Philippine Daily Inquirer
- Dancel, M. M. (1989). The Ifugao Wooden Idol. SPAFA Digest.
- Barton, R. F. (1955, December). A Collection of Igorot Legends. Sagada Social Studies.
- Acabado, Stephen (2018). "Zones of refuge: Resisting conquest in the northern Philippine highlands through environmental practice". Journal of Anthropological Archaeology. 52: 180–195. doi:10.1016/j.jaa.2018.05.005.
- Acabado, Stephen (September 2009). "A Bayesian approach to dating agricultural terraces: a case from the Philippines". Antiquity. 83 (321): 801–814. doi:10.1017/S0003598X00099002. ISSN 0003-598X.
- Scott, William (1974). The Discovery of the Igorots. Quezon City: New Day Publishers. p. 199. ISBN 9711000873.
- Scott, William (1966). On the Cordillera. Manila: MCS Enterprises, Inc. pp. 178–180.
- Habana, Olivia M. (2000). "Gold Mining in Benguet to 1898" (PDF). Philippine Studies. Ateneo de Manila University • Loyola Heights, Quezon City • 1108 Philippines. 48: 466. Retrieved 13 October 2018.CS1 maint: location (link)
- Bagamaspad, Anavic; Hamada-Pawid, Zenaida (1985). A People's History of Benguet Province. Philippines: Baguio Printing & Publishing Company, Inc. p. 94,114.
- Sumeg-ang, Arsenio (2005). "4 The Ifugaos". Ethnography of the Major Ethnolinguistic Groups in the Cordillera. Quezon City: New Day Publishers. pp. 71–91, 202. ISBN 9789711011093.