this post was submitted on 01 Oct 2023
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[–] jarfil@lemmy.world 9 points 1 year ago* (last edited 1 year ago) (1 children)

People used to count 12 knuckles times 5 fingers for a total base 60.

Using only 5+5 fingers is the dumbed down version.

[–] ininewcrow@lemmy.ca 4 points 1 year ago* (last edited 1 year ago) (1 children)

Wasn't it the Sumerians that did use base 60 and just went to counting knuckles and joints to get to the base 60 system ... never fully understood it when I read about it either

Here is a demonstration

https://mathsciencehistory.com/2021/11/09/count-to-60-with-your-phalanges/

[–] jarfil@lemmy.world 6 points 1 year ago

Sumerians and Babylonians used the same cuneiform writing system with a base of 6×10, but it seems like they also used to count to 60 as 12×5... and what we're left with, is the simplified 5+5=10.

Also, we shall remember that:

𒀭 𒐏𒋰𒁀 𒎏𒀀𒉌 𒂄𒄀 𒍑𒆗𒂵 𒈗 𒋀𒀊𒆠𒈠 𒈗𒆠𒂗 𒄀𒆠𒌵𒆤 𒂍𒀀𒉌 𒈬𒈾𒆕