Acámbaro is a city and municipality in the southeastern corner of the Mexican state of Guanajuato, on the banks of the Lerma River, and the oldest of the 46 municipalities of Guanajuato. Acámbaro is noted as a major railway junction, a local transport hub, and the origin of the nationally famous Acámbaro bread. The current (2005 census) population of the municipality is 101,762 persons, that of the city proper 55,082. The municipality covers an area of 867.67 km² (335.01 sq mi) and includes many small outlying communities, the largest of which are Iramuco and Parácuaro.
|San Francisco de Acámbaro|
Main plaza in Acámbaro
With Acambaro, Guanajuato was born
|Signing of ratification||1535|
|Founded by||Don Nicolás de San Luis Montañés|
|• Mayor||Alejandro Tirado Zúñiga|
|• Secretary||José de Jesús Argueta Gómez|
|Elevation||1,860 m (6,100 ft)|
|Highest elevation||3,100 m (10,200 ft)|
|Lowest elevation||1,800 m (5,900 ft)|
|Time zone||UTC−6 (CST)|
|• Summer (DST)||UTC−5 (CDT)|
38600 - 38787
|Website||City of Acambaro|
|Climate data for Acámbaro|
|Average high °C (°F)||24.1
|Average low °C (°F)||5
|Average precipitation mm (inches)||15
|Source: Weatherbase |
The name Acámbaro is derived from a Native American term meaning place of magueyes. The first inhabitants of this area belonged to the Chupicuaro culture, one of the oldest in Mesoamerica. Their origin is estimated to be from 1200 B.C. In this region there have been valuable archaeological finds of ceramic of incredible beauty that are now exhibited at the local museum.
The city was founded on September 19, 1526, by the cacique Don Nicolás de San Luis Montañés, with the name San Francisco de Acámbaro. It was the first Spanish town in what is now the state of Guanajuato. The evangelization process was undertaken by Franciscan friars, who also constructed splendid structures that remain standing today, such as the Templo del Hospital (Hospital Temple), an aqueduct in the Mudéjar style (1527), and a stone bridge over the River Lerma (1750). The first bullfights on the soil of New Spain were held in Acámbaro, and the Fuente Taurina fountain in the city's plaza commemorates the introduction of the sport to Mexico. Acámbaro is the only city in Mexico that has a fully intact colonial-era aqueduct.
The 18th century brought prosperity to Acámbaro. In that time important religious and public buildings were constructed. Beautiful temples, bridges, and particular houses were left as remnants of the city's colonial architecture.  An important event in the history of Mexican independence took place in Acámbaro. Don Miguel Hidalgo stayed there on October 22, 1810, and brought a ceremony that declared Acámbaro military quarters for the Ejército Grande de América (Grand Army of America). Hidalgo was given the title of Generalísimo de las Américas (Grand General of the Americas). That same day, a parade of eighty thousand insurgents took place, that demonstrated the speed of growth of the movement: one month prior on September 16 just 800 men responded to the Grito de Dolores and raised arms against the Spanish in Dolores Hidalgo.
Because of its strategic location, Acámbaro was the key to the development of the railway in Mexico, and had a major junction, yard and shop facility for the National Railways of Mexico (The rail lines are now owned by Kansas City Southern de Mexico). Acámbaro was the home of the only full scale locomotive repair facility in Latin America that was capable of constructing steam locomotives. During 1944 Acámbaro's mechanical workshop built La Fidelita 296, a steam engine that is a symbol of a time in history of the Acambarense society. La Fidelita is now on display as the cornerstone exhibit of Acámbaro's railway museum. Another souvenir of Acámbaro's age of steam is a large model locomotive that sits on an elevated platform in the center of a major highway intersection east of the city. The model engine was originally intended to be placed in a church as a thanks by railway workers to the Virgen del Refugio (patron saint of the city) for bringing prosperity and jobs to Acámbaro, however, the model would not fit through the doorway of the church. Consequently, it was decided to mount the model outdoors. 
Acámbaro has been notable as a point of controversy in the field of archeology as the source of the Acámbaro figures, a collection of about 32,000 clay figurines discovered by German archaeologist Waldemar Julsrud in 1944 near the city's most prominent landmark, the Cerro del Toro (Bull Hill). The figures are claimed to be hoaxes, as some of the figurines resembled dinosaurs (thus implying that man and dinosaurs co-existed) and their discovery is used by some as evidence to support creationism. Many of the Julsrud finds are now on display at the Museo Waldemar Julsrud.
Less controversial archeological artifacts are on display at the Museo de Chupícuaro (also known as Museo Fray Bernardo Padilla), documenting the history of the Chupícuaro people, and the Museo Local de Acámbaro, which has over 4000 relics relating to local Mesoamerican cultures. The Museo Local also contains paintings related to colonial Mexico and the war of independence.
Pan de Acámbaro (Acambaro bread), Acámbaro's most famous culinary export, is a bakery product similar to Jewish Challah (It is supposed that the similarity is not coincidental). The largest of the six city bakeries devoted to the production of Pan de Acámbaro is Tio Sams (Uncle Sam's), which claims credit for its invention. Photos of Acámbaro's annual bread fair[permanent dead link]
- "Weatherbase: Historical Weather for Acámbaro, Guanajuato". Weatherbase. 2011. Retrieved on November 24, 2011.
- Link to tables of population data from Census of 2005 INEGI: Instituto Nacional de Estadística, Geografía e Informática
- Guanajuato Enciclopedia de los Municipios de México