The first bullfight was held in honor of King Alfonso VIII's coronation in 1133. It was called a "corrida" then. These events eventually became popular for celebrating important events and to test the zeal of noblemen.
The modern "corrida" first seen at the coronation in 1133 was popularized in 1726 when Francisco Romero started using a cape and weapons during the event.
Some older paintings imply that some type of bullfighting existed before 1133. A wall painting in Crete that dates to 2000 B.C. shows men and women grabbing a bull by the horns as it charges. Both the Romans and North Africans had their own versions of bullfights as well.