I think that’s only partly true. It was pretty well institutionalized in ancient Greek society. At least that’s what the college history professor said.
Any freeper history experts care to put their two cents in on this?
It did exist, at certain points in history- mainly among people of elite or exceptional rank in certain societies. Privileged decadence, if you will.
Moreover, I doubt it was ever formalized in law, as we have done, and gay marriage certainly never existed as a cultural institution among common people, in common culture anywhere that I am aware of. If it did, we would see it surviving beyond limited places and points in history, wouldn't we?