That Is?

The Feria Nacional de San Marcos (San Marcos Fair) is a national fair held in the Mexican state of Aguascalientes every year for three (or sometimes four) weeks. Most of the events related to the fair, however, occur in the city of Aguascalientes, the state capital. The exact date of the fair varies every year but is set around April 25, the Feast Day of San Marcos.

When Start?

The fair was celebrated for the first time around harvest time from November 5 to November 20, 1828, as a showcase of the state's produce and livestock.

 

Activities.

The San Marcos National Fair is organized by an independent foundation that oversees the governance of what happens at the fair, but is supported by the state and city governments of Aguascalientes.

The fair is host to a large range of activities, of which bull and cock fighting are the most popular. Usually a concert is given by a prominent Mexican singer after a series of cockfights; this event tends to draw more attention than the fights themselves.

MOVIES. 

FAIR SAN MARCOS

http://www.youtube.com/watch?v=TZdK0spbyvA