Murduck, well said.
Religions founded entirely by one man are commonly referred to as Cults. If you look at religions from a birds-eye-view ... all becomes clear.
Cults (false religions and beleifs and doctrines) are almost always founded by one person ... You see the same characteristic throughout Buddhism with Buddha, Mormonism with Joseph smith, Islam with Mohammed, Sikhism and Guru Nanak.
Interesting how Satan has successfully managed to create many paths to lead people away from the One and only true God.