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they need to know what they had to do and when so they made what is called a Calendar today to help them keep track of daily activities. I hope this helps if not let me know:)

Calendars are a sign of date and time and tell about the upcoming events and help in planning.

  • The earliest know calendar is that of Sumerian which was followed by the Egyptians.
  • A large number of calendar systems exists in the ancient east. The ancient people wanted to measure and keep a track of time and relied on the movement of the celestial bodies.

Hence the ancient calendar helps the ancient people to measure the year, season, and month.

Learn more about the developed because early people needed to know.

brainly.com/question/18242818.

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