WALTER CRUTTENDEN is an amateur theoretical archaeo-astronomer and author of the binary theory of precession. As Executive Director of the Binary Research Institute he researches the celestial mechanics of the precession of the equinox, as well as myth and folklore related to this phenomenon. He is the writer-producer of The Great Year, a PBS broadcast documentary film (narrated by James Earl Jones) that explores evidence of astronomical cycles of time known to cultures throughout the ancient world.