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Who Invented 7 Days In A Week? [Solved]

For centuries the Romans used a period of eight days in civil practice, but in 321 CE Emperor Constantine established the seven-day week in the Roman calendar and designated Sunday as the first day of the week.

Why Are There 7 Days In a Week? EXPLAINED

Why does everyone use a

Why Are There 7 Days In A Week?

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Why do we have 7days in a week who invented it?

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