Mexicans of European descent officially in force through the rest of the colonial period. Criollo resentment of the privileges afforded to the "Peninsulares" was the main reason behind the Mexican War of Independence. When the war ended in 1821, the new Mexican government expelled the peninsulares (approximately 10,000 – 20,000 people) in the 1820s and 1830s which at a degree, kept the European ethnicity from growing as a percentage; this expulsion however, did not lead to any permanent ban on European immigrants, even from Spain. Independence did not do away with economic and social privilege based on race as the Criollos took over those
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