One of the major lines of demarcation and a constant source of disagreement between theists and atheists is that of Life. Primarily human life, but in general, all life. How did living things get their beginnings, how did we come about as a result of creation? It’s one of the great mysteries of…ummm…life. How life began.
And of course, most theists believe that life began when their particular god created them. Christians believe the story in the Bible about Adam and Eve, either literally or figuratively. In either case, it’s a supernatural being that consciously and affirmatively decided to create that which we call life. Other religions have their own creation myths, but they all share a beginning story that attempts to explain how we got here.