Examples
- A farmer noticed that after the sun went down, it came up again, so he knew a day had passed.
- Kids used hourglasses to know when playtime was over.
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See also
- How Did the Pyramids Stay Standing for Thousands of Years?
- Why Did the Roman Empire Fall?
- How Does the Ancient Roman Calendar Work?
- How Did Ancient Civilizations Count Without Numbers?
- How Do We Know What People Thought Long Ago?
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Categories: History · time,history of science,ancient civilizations