Which Is the Oldest Calendar: Sumerian Lunar-Solar Calendar Explained

Discover the oldest known calendar, the Sumerian lunar-solar calendar from Mesopotamia dating back to 21st century BCE.

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The oldest known calendar is the lunar-solar calendar of the Sumerians from Mesopotamia, dating back to the 21st century BCE.** This calendar was later inherited and refined by the Babylonians.

FAQs & Answers

  1. What is the oldest known calendar? The oldest known calendar is the lunar-solar calendar created by the Sumerians in Mesopotamia around the 21st century BCE.
  2. How did the Babylonian calendar relate to the Sumerian calendar? The Babylonians inherited and refined the original Sumerian lunar-solar calendar, improving its accuracy.
  3. What is a lunar-solar calendar? A lunar-solar calendar is a system that tracks time based on both the phases of the moon and the solar year.

Watch More

For more insights into ancient timekeeping and calendars, explore videos and articles on Babylonian calendar developments and other early civilizations' contributions to how we measure time.

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