|Ab urbe condita||1817|
|Balinese saka calendar||985–986|
|English Regnal year||N/A|
|Chinese calendar||癸卯年 (Water Rabbit)|
3760 or 3700
— to —
甲辰年 (Wood Dragon)
3761 or 3701
|- Vikram Samvat||1120–1121|
|- Shaka Samvat||985–986|
|- Kali Yuga||4164–4165|
|Japanese calendar||Kōhei 7|
|Minguo calendar||848 before ROC|
|Seleucid era||1375/1376 AG|
|Thai solar calendar||1606–1607|
1190 or 809 or 37
— to —
1191 or 810 or 38
|Wikimedia Commons has media related to 1064.|
- Summer – King Ferdinand I (the Great) conquers more territory in modern-day Portugal and captures Coimbra. He appoints Sisnando Davides to reorganise the economy and administer the lands encircling the city.
- European warriors go to Spain, to participate in the siege of Barbastro. This expedition is sanctioned by Pope Alexander II – and is now regarded as an early form of Crusade.
- Harold Godwinson, Earl of Wessex, is shipwrecked on the shores of Ponthieu (Normandy). He is captured by Count Guy I who takes him as hostage to his castle of Beaurian.
- Duke William I (the Bastard) demands the release of Harold Godwinson from Guy I (after paid a ransom). Harold must swear an oath to aid William to the throne of England.
- Kings Harald Hardrada of Norway and Sweyn II of Denmark agree to a peace agreement. Harald turns his attentions to England where he believes he has a right to the throne.
- April 27 – Alp Arslan, succeeds to the throne as sultan of the Seljuk Empire. He becomes sole ruler of Persia from the river Oxus to the Tigris.
- The Seljuk Turks under Alp Arslan invade Anatolia, and capture Ani after a siege of 25-days. He sacks the city and slaughters its citizens.
- Badr al-Jamali, Fatimid governor of Syria, tries to engineer a pro-Fatimid coup in Aleppo; but the rebellion is suppressed by Musa Yabgu.
- King Bagrat IV of Georgia captures the fortress city of Samshvilde, the capital of the neighboring Tashir-Dzoraget.
- Winter – Great German Pilgrimage: Archbishop Siegfried I of Mainz leads a pilgrimage to Jerusalem.
- Michaelsberg Abbey at Siegburg (modern Germany) is founded by Anno II, archbishop of Cologne.
- Construction of the Piazza dei Miracoli (known as Piazza del Duomo) at Pisa in Tuscany begins.
- Adela of Flanders, queen of Denmark (approximate date)
- Beatrice I, countess of Bigorre (approximate date)
- Bořivoj II (or Borivoi), duke of Bohemia (approximate date)
- Danxia Zichun, Chinese Zen Buddhist monk (d. 1117)
- Hugh of Flavigny, French abbot (approximate date)
- Robert Fitz Richard, English nobleman (d. 1136)
- August 15 – Ibn Hazm, Andalusian historian and poet (b. 994)
- November 29 – Al-Kunduri, vizier of the Seljuk Empire (b. 1024)
- December 19 – Fujiwara no Nagaie, Japanese nobleman (b. 1005)
- Akkadevi, princess of the Chalukya Dynasty (b. 1010)
- Dromtön, Tibetan monk and founder of Reting Monastery
- Dub dá Leithe (or Dubhdalethe), Irish abbot
- Gozelo I (or Gozelon), count of Montaigu
- Llywelyn Aurdorchog, Welsh nobleman (approximate date)
- Yaakov ben Yakar, German Jewish rabbi (b. 990)
- Yi Yuanji, Chinese painter (approximate date)
- McGrank, Lawrence (1981). "Norman crusaders and the Catalan reconquest: Robert Burdet and te principality of Tarragona 1129-55". Journal of Medieval History. 7 (1): 67–82. doi:10.1016/0304-4181(81)90036-1.
- Baynes, T.S. (2008). Anni, Encyclopædia Britannica (9th ed.). New York: Charles Scribner's Sons, p. 72.
- David Nicolle (2013). Osprey: Manzikert 1071: The breaking of Byzantium, p. 20. ISBN 978-1-78096-503-1.
- Anales de Tlatelolco, Rafael Tena INAH–CONACULTA 2004, p. 55.