Dallas Theological Seminary is one of the largest evangelical seminaries in the world, located in Dallas, Texas. The seminary was founded by Lewis Sperry Chafer and W. H. Griffith Thomas in 1924. It has grown to have with extension campuses in Atlanta, Austin, Houston, San Antonio, and Tampa. With past presidents including John Walvoord and Charles Swindoll, it has been known for many years as the academic center of dispensationalism.