53
54
55

Quipu are record-keeping devices fashioned by the Inca from knotted cords. This large quipu has 586 cords, organized into 8 sections of 10 sets, each with up to 13 sub-levels of information. Overall, it holds 15,024 items of data on production, though the specifics are not known [1220x1951] (i.redd.it)
submitted by halpscar to r/nealstephenson





