Not true, actually. As per my Cis Hetstory class, being gay was invented in 1969 with the Stonewall riots, where gay people for the first time emerged out of nowhere from the basement of the Stonewall Inn, which was a good, reputable, Christian establishment. the gays then threw bricks at the respectable and noble NYPD for no reason. Everyone there was cis though. Trans people were invented in 2012 on tumblr