Tijuana, Mexico, is founded.

Tijuana is the most populous city of the Mexican state of Baja California, located on the northwestern Pacific Coast of Mexico. Tijuana is the municipal seat of the Tijuana Municipality, the hub of the Tijuana metropolitan area and the most populous city in northern Mexico. It is just south of California and it has a close proximity to the Mexico–United States border which is part of the San Diego–Tijuana metro area.