01:1001:10, 27 June 2023diffhist+80
Yupana
better photo of table yupana, reworked intro to clarify that it's not at all well-understood. Also swapped out "abacus" for "counting board", which is more accurate
01:1001:10, 27 June 2023diffhist+80
Yupana
better photo of table yupana, reworked intro to clarify that it's not at all well-understood. Also swapped out "abacus" for "counting board", which is more accurate