Eli5: how did early civilizations know what was north and what was south

Question

Eli5: how did early civilizations know what was north and what was south

In: Biology

Answer 1

They didn’t know north and south. But people in the northern hemisphere noticed that the stars in the north didn’t rotate much, and people in the southern hemisphere noticed that the stars in the south didn’t rotate much.

That made them landmarks. Or sky marks, I guess. Things that don’t move when you move are *very* useful to navigation.