San Luis Obispo de Tolosa was founded on September 1, 1772. The mission church was built in 1792-1794. The former convento (now a museum) has a distinctive front colonnade. The museum has a special room that focuses on the Chumash Indians. A large modern plaza in front of Mission San Luis Obispo is a popular site for community events. The principal Roman Catholic Church in the Town of San Luis Obispo which is part of the Diocese of Monterey.