This is a work about influences and what "influences" means. Following an analysis of this elusive concept, A. L. Herman presents compelling evidence that the following hypothesis is testable, defendable, and probably true: that the Indus Valley religion with its Savior-God, Siva (2500-1800 B.C.E.), significantly influenced a Greek religion with its Savior-God, Jesus of Nazareth (50-300 C.E.), such that it can be meaningfully claimed that the religion of the Indus Valley civilization probably influenced early Christianity.