Submitted by Slokkkk t3_11dm4k6 in explainlikeimfive
fiatfighter t1_jaatflc wrote
Reply to comment by Ansuz07 in Eli5: How did people know how long a year was in olden times? by Slokkkk
Not very ELI5 my friend.
jet-setting t1_jabl0z5 wrote
Put stick in ground. Look at shadow.
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