Around 2400 BC, the Sumerians noticed the circular path the Sun made across the sky. They knew it took about 360 days each year. That’s why a circle has 360 degrees – one for each day.
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Around 2400 BC, the Sumerians noticed the circular path the Sun made across the sky. They knew it took about 360 days each year. That’s why a circle has 360 degrees – one for each day.