this was reported centuries ago.
but remember that all cultures are equal ... at least thats what leftard professors teach.
I was going to say, elbook, but you said it first.
I still remember learning is grade school, about 55 years ago, that one big Temple skull-trophy-wall had 20,000 skulls, and there were trophy-walls not just at the big Temples (like Tenochtitlan) but in hundreds of cities and towns.