St. John O'Sullivan was placed in charge of the mission in 1910, at which time its community was scattered and its buildings in ruins. He set about rebuilding the parish community as well as restoring the old facilities. The Mission was accorded full parochial status in 1918 as the Mission Church San Juan Capistrano. The Serra Chapel, the oldest standing church building in California and the only extant building where St. Junipero Serra is known to have said Mass, was used for services, as the Mission's original stone church was destroyed in an 1812 earthquake. Founded over 200 years ago as the 7th of 21 missions statewide, the Mission San Juan Capistrano was named for Giovanni de Capistrano, a 15th-century theologian and “warrior priest”, and is home to the oldest building in California still in use. Mission San Juan Capistrano is known as the “Jewel of the California Missions” and welcomes over 300,000 visitors each year. It is also well known for its beautiful gold altar that magnifies the beauty of Catholicism and our worship to God.