Treaty of Córdoba
The Treaty of Córdoba established Mexican independence from Spain at the conclusion of the Mexican War of Independence. It was signed on August 24, 1821 in Córdoba, Veracruz, Mexico. The signatories were the head of the Army of the Three Guarantees, Agustín de Iturbide, and, acting on behalf of the Spanish government, "Jefe Político Superior" Juan O'Donojú. The treaty has 17 articles, which developed the proposals of the Plan of Iguala. The Treaty is the first document in which Spanish (without authorization) and Mexican officials accept the liberty of what will become the First Mexican Empire, but it is not today recognized as the foundational moment, since these ideas are often attributed to the Grito de Dolores (September 16, 1810). The treaty was rejected by the Spanish government. Spain did not recognize Mexico's independence until December 1836.
Republic of Texas
Along with the rest of Mexico, Texas gained its independence from Spain in 1821 following the Treaty of Córdoba, and the new Mexican state was organized under the Plan of Iguala, which created Mexico as a constitutional monarchy under its first Emperor Agustín de Iturbide. During the transition from a Spanish territory to part of the independent country of Mexico, Stephen F. Austin led a group of American settlers known as the Old Three Hundred, who negotiated the right to settle in Texas with the Spanish Royal governor of the territory. Since Mexican independence had been ratified by Spain shortly thereafter, Austin would later travel to Mexico City to secure the support of the new country for his right to settle. The establishment of Mexican Texas coincided with the Austin-led settlement, leading to animosity between Mexican authorities and ongoing American settlement of Texas. The First Mexican Empire was short lived, being replaced by a republican form of government in 1823. Following Austin's lead, additional groups of settlers, known as Empresarios, continued to colonize Mexican Texas from the United States. In 1830, Mexican President Anastasio Bustamante outlawed American immigration to Texas, following several conflicts with the Empresarios over the status of slavery in the region. Angered at the interference of the Mexican government, the Empresarios held the Convention of 1832, which is considered the first formal step in what would later become the Texas Revolution.