Good point. I think it was a concept even earlier - mice had a back button even in the 90s and there is a specific . Unfortunately, instead of saying these will

Good point. I think it was a concept even earlier - mice had a back button even in the 90s and there is a specific . Unfortunately, instead of saying these will always be back and forward they were just implemented using XBUTTON1 and XBUTTON2 and applications could choose how to handle them