 Probably millennia. I mean, the first reports we have, this isn't a written culture, but when the conquistadors get to Central America, they find people using mushrooms in their religious ceremonies as a sacrament. And they called it teonantikatl, which meant flesh of the gods. And that's, of course, what the Christians called their sacrament too, right? It was the flesh of God that you're eating in the communion.