Aphelion

I'm certain it predates written history, but beyond that, it's a large topic. You may want to search the net on it . . . it falls under Anthropology, I think.

Recent news item: about two-thirds of a group of people polled in the U.S. said that they no longer think marriage is relevant.

Welcome to Earth, by the way; I hope you find it pleasant. Not all of us do, but many of us try to make it as nice as we can.

I know . . . sometimes I just have a little fun with 'em.