This question about past cultures using non-base-10 systems is quite popular. The meat of the question was:
Have any non decimal numbering systems been used frequently in the past? If so, what were they?
I could see an argument for this question being categorized as a "big list" and "too broad," and therefore should be closed. Sure, there is a single answer of "yes there have been," but the question asks for examples of such cultures.
On the other hand, I think the history of bases is interesting and I want to read more.
Would it be useful for our community to describe why this should be on topic?