Final answer:
American settlers in Texas were required to A) pledge allegiance to Mexico, B) adopt Mexican customs and language, and C) convert to Catholicism. However, tensions arose due to cultural differences, local political dominance, and the settlers' refusal to fully integrate, including their practice of slavery, leading to the Texas Revolution and eventual independence as the Republic of Texas in 1836.
Step-by-step explanation:
American settlers in Texas, then a Mexican province, needed to comply with several requirements to naturalize and integrate into Mexican society.
These requirements included: A) Pledging allegiance to the governing country, which was Mexico; B) Adopting the country's customs and language, which involved official transactions being conducted in Spanish and settling within designated areas to promote assimilation;
And C) Converting to the prevailing religion, which was Roman Catholicism, despite the fact that many settlers were Protestant and resisted this requirement.
However, despite the Mexican government's efforts, conflicts arose due to cultural, political, and economic tensions. The American settlers, later known as "Texans", remained culturally distinct by retaining their religious practices and by some circumventing the prohibition on slavery by classifying slaves as lifelong indentured servants.
This strained relations with the Mexican government and contributed to the growing unrest that led to the Texas Revolution and the eventual declaration of independence for Texas as the Republic of Texas in 1836.