The Origin of Religion
Twain was a humorist and not an anthropologist, and thus we can accept what he said here with a grin, even though it’s clearly untrue.
Religion was one of humankind’s first attempts to explain natural phenomena, before science came along and gave us another way forward.
The concept of a God in the sky, commanding us to worship and obey Him, in exchange for His love and protection–even after the death most of us fear–made perfect sense at the time, just as it does for many of us today.