Spanish Missions were religious outposts established by Spanish explorers and missionaries in the Americas during the 16th to 19th centuries. Their primary goal was to convert Indigenous peoples to Christianity and to expand Spanish territory. These missions often included a church, living quarters, and agricultural areas, helping to spread Spanish culture and influence in the region. Many famous missions, such as the California Missions, were built along the coast and served as centers for trade and education. The missions played a significant role in the history of California and the southwestern United States, leaving a lasting impact on local communities and cultures.