Missionary activities in New Spain shaped the religious and cultural landscape of colonial Mexico. Religious orders like the Franciscans, Dominicans, and Jesuits arrived to convert indigenous populations, using various strategies to spread Christianity and European culture. These efforts had profound impacts on native languages, beliefs, and practices. While missionaries preserved some indigenous knowledge, their work also led to cultural suppression and syncretism. The missions played a key role in Spanish colonial expansion and indigenous integration into the colonial system.