Contra Costa County, California
In 1821 Mexico gained independence from Spain. While little changed in ranchero life, the Mexican War of Independence resulted in the secularization of the missions with the re-distribution of their lands, and a new system of land grants under the Mexican Federal Law of 1824. Mission lands extended throughout the Bay Area, including portions of Contra Costa County. Between 1836 and 1846, during the era when California was a province of independent Mexico, the following 15 land grants were made in Contra Costa County.
Costa Rica–Mexico relations
Costa Rica and Mexico are two Latin American nations that share a common history in the fact that both nations were colonized by the Spanish empire. During Spanish colonization, Costa Rica was under the administration of the Viceroyalty of New Spain in Mexico City. In 1821, Mexico gained independence from Spain and Costa Rica became part of the First Mexican Empire. In 1823, the empire dissolved and Costa Rica, along with El Salvador, Guatemala, Honduras and Nicaragua joined the United Provinces of Central America. In 1838, the union dissolved and Costa Rica became an independent nation. That same year, Costa Rica and Mexico established diplomatic relations.