jehovah's witnesses believe that god made adam and eve, the first humans, and put them in a garden called eden. they believe that when adam and eve sinned, they no longer had god's approval so they began to get sick and die. they were not perfect any more and could not have perfect children. because of this, humans could not remain sinless. they believe that jehovah later sent jesus to die (on a pole (stake), not a cross, as most christians believe, which is known as 'christendom') to forgive mankind's sins.