Complex sentence: He received his Phd in American Religious History from George Washington University in 2004, he had previously received his M.A from California State University Fullerton as well as his B.A. from Vanguard University.
Split into simpler sentences: He received his Phd in American Religious History from George Washington University in 2004. Marley had previously received his M.A from California State University Fullerton as well as his B.A. from Vanguard University.