who did mexico gain independence from on september 16
Mexican War of Independence The Mexican War of Independence (Spanish: Guerra de Independencia de México) was an armed conflict, and the culmination of a political and social process which ended the rule of Spain in 1821 in the territory of New Spain. The war had its antecedent in Napoleon's French invasion of Spain in 1808; it extended from the Grito de Dolores by Father Miguel Hidalgo y Costilla on September 16, 1810, to the entrance of the Army of the Three Guarantees led by Agustín de Iturbide to Mexico City on September 27, 1821. September 16 is celebrated as Mexican Independence Day.
Sam Houston Houston was selected as Commander-in-Chief at the convention to declare Texan independence in March 1836, and he signed the Texas Declaration of Independence on March 2, 1836, his 43rd birthday. Mexican soldiers killed all those at the Alamo Mission at the end of a 13-day siege on March 6. On March 11, Houston joined what constituted his army at Gonzales: 374 poorly equipped, poorly trained, and poorly supplied recruits.[24][25] Word of the defeat at the Alamo reached him and, while he waited for confirmation, he organized the recruits as the 1st Regiment Volunteer Army of Texas.
Battle of Puebla The Battle of Puebla was an inspirational event for wartime Mexico, and it provided a stunning revelation to the rest of the world which had largely expected a rapid victory for French arms.[13]
Texas annexation The Anglo-American immigrants residing in newly-independent Texas overwhelmingly desired immediate annexation by the United States.[39] But, despite his strong support for Texas independence from Mexico,[40] then-President Andrew Jackson delayed recognizing the new republic until the last day of his presidency to avoid raising the issue during the 1836 general election.[41][42] Jackson's political caution was informed by northern concerns that Texas could potentially form several new slave states and undermine the North-South balance in Congress.[43]