Salamanca (Otomi: Xidoo "Place of Tepetate") is a city and municipality in the Mexican state of Guanajuato.
The city was founded on January 1, 1603, as 'Villa de Salamanca' by the Viceroy Gaspar de Zúñiga, fifth Count of Monterrey, who was originally from Salamanca (Spain). The town was founded in the lands of the Bajío, after cattle ranchers and poor farmers, a few Spaniards, and small groups of Otomis who formerly occupied a village named Xidoo, already lived in the area.
Guanajuato, officially the Free and Sovereign State of Guanajuato, is one of the 32 states that make up the Federal Entities of Mexico. It is divided into 46 municipalities and its capital city is Guanajuato.
It is located in central Mexico and is bordered by the states of Jalisco to the west, Zacatecas to the northwest, San Luis Potosí to the north, Querétaro to the east, and Michoacán to the south. It covers an area of 30,608 km (11,818 sq mi). The state is home to several historically important cities, especially those along the "Bicentennial Route", which retraces the path of Miguel Hidalgo y Costilla's insurgent army at the beginning of the Mexican War of Independence. This route begins at Dolores Hidalgo, and passes through the Sanctuary of Atotonilco, San Miguel de Allende, Celaya, and the capital of Guanajuato. Other important cities in the state include León, the state's biggest city, Salamanca, and Irapuato. The first town established by the Spaniards in Guanajuato is Acámbaro while the first to be named a city is Salvatierra.
Celaya (Spanish pronunciation: [seˈlaja] ; Otomi: Ndathi) is a city and its surrounding municipality in the state of Guanajuato, Mexico, located in the southeast quadrant of the state. It is the third most populous city in the state, with a 2005 census population of 310,413. The municipality for which the city serves as municipal seat, had a population of 415,869. The city is located in the geographic center of the municipality, which has an areal extent of 553.1 km (213.6 sq mi) and includes many smaller outlying communities, the largest of which are San Miguel Octopan, Rincón de Tamayo and San Juan de la Vega.
There are many smaller towns around Celaya including Rincón de Tamayo, Tarimoro, Villagrán, La Moncada, Panales Jamaica (Cañones), Panales Galera, La Calera, La Estancia, La Noria, Los Fierros, El Acebuche, Cacalote, and Charco Largo. It is also not far away from Cortazar, Salamanca, Salvatierra, Apaseo el Grande, Querétaro City and among others. The city was founded in 1570 as Villa de la Purisíma Concepción de Zalaya. The word Zalaya is of Basque origin and means "Flat Land".