" Mithraism predated Christianity yet bore uncanny similarities. Mithra’s birthday was celebrated on December 25. The god’s worship involved baptism and the consumption of a sacred meal of bread and wine. Mithra also had twelve disciples, held Sunday sacred, and described a heaven and a hell. Upon his death, Mithra was also buried in a tomb, only to rise again in three days. "

― James Rollins , Map of Bones (Sigma Force, #2)