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
Mexican War of Independence on September 27. Following his ouster, there were calls to commemorate Mexican independence along the lines that the United States celebrated in grand style its Independence Day on July 4. The creation of a committee of powerful men to mark independence celebrations, the "Junta Patriótica", organized celebrations of both September 16, to commemorate Hidalgo's grito and the start of the independence insurgency, and September 27, to celebrate actual political independence. During the Díaz regime (1876–1911), the president's birthday coincided with the September 15/16 celebration of independence. The largest celebrations took place and continue to do so in the capital's main