yes, here is mayan numbers:
i remember a part in one of the new Tomb Raider games a puzzle that involved mayan numbers and indeed the 0 was a ring shape
i don't know if they "discovered" it i'm pretty sure mathematics goes waaaay back to like 20k years ago in the civilization of Atlantis (which was founded by Poseidon, according to the Greeks)
oh yeah and see how confusing that is... the number 20 is literally the same as 1 and 0 stacked
ohhh... that's because their use base 20
Huh, interesting. The myana ruins have at Chichen Itza have a round "observatory" structure where the learned astrologer priests were based.
And behind the big pyramid, there is a temple in the back lot with depictions of a god with 12 servants carved around him.
If memory serves the frise may have also depicted a pecker sticking out of the rock of the temple carvings
