Same-sex marriage is not a phenomenon of modern society. Marriage has been a continually changing institution. Same-sex marriage dates back to antiquity.
Marriage: A changing institution:
Marriage is an evolving institution whose social meaning has undergone considerable re-definition over time and accommodated variations in society at any one time. Professor Allan Tulchin of Shippensburg, writes in the Journal of Modern History (Sept. 06):
Western family structures have been much more varied than many people today seem to realize. … And Western legal systems have in the past made provisions for a variety of household structures.