History of Albuquerque, New Mexico
In 1821, Mexico gained its independence from Spain following the Mexican War of Independence. While change was slow to come to the remote province of New Mexico, one major effect was the opening of the region for the first time to American trade. Beginning in the 1820s, the Santa Fe Trail brought American goods and merchants to New Mexico in ever-increasing numbers. Albuquerque's location on the Camino Real also made it a stopover for traders traveling south to the Mexican interior. The Mexican census of 1827 gives a population of 2,547, and shows a more diverse range of occupations than in 1790, including merchants, craftsmen, and a teacher.
Mexico City
The Grito de Dolores ("Cry of Dolores"), also known as El Grito de la Independencia ("Cry of Independence"), marked the beginning of the Mexican War of Independence. The Battle of Guanajuato, the first major engagement of the insurgency, occurred four days later. After a decade of war, Mexico's independence from Spain was effectively declared in the Declaration of Independence of the Mexican Empire on September 27, 1821. Unrest followed for the next several decades, as different factions fought for control of Mexico.