History of California before 1900 decade and a half, the colony came to rely upon trade with Anglo-Americans and Spanish-Americans from Lima and San Blas for economic survival and political news. The victory in the Mexican War of Independence from Spain in 1821 marked the beginning of Mexican rule in California, in theory, though in practice Mexico did not exert control until 1825. The Indian congregations at missions and the missionaries provided the critical source of products that underlay export revenues for the entire colony between 1810 and 1825. Converting new Indians faded, while ranching and trade increased. As the successor state to the Viceroyalty
Puebla a commemoration of Mexican culture and heritage, particularly in areas with large Mexican-American populations. Many Americans mistakenly believe that Cinco de Mayo (“May 5th”) is the Mexican equivalent of the United States’ Fourth of July holiday — a date marking the official casting off of colonial rule via the announcement of a new independent country. However, the Mexican version of Independence Day is celebrated on September 16, for it was on that date in 1810 that the commencement of the war for Mexican independence from Spanish rule was pronounced in the small town of Dolores by Miguel Hidalgo y Costilla