Our calendar is like a big, friendly clock that helps us know when to sleep, play, and eat.
Long ago, people noticed that the sun moved across the sky in a pattern, sometimes it was high up, sometimes low. They saw this as day and night, and they counted how many days passed until the sun came back to where it started, that was one full year.
The Moon Helps Count Days
People also noticed that the moon changed shape, from a round full moon to no moon at all, and then back again. This cycle took about 28 days, so they used the moon to help count weeks and months.
People Worked Together To Make A Calendar
Over time, different groups of people started using their own calendars, like counting by the sun or the moon. But when people began to travel and trade with each other, they needed a way to agree on dates, so they made one big calendar that everyone could use. That’s how we got our calendar today!
Examples
- A student explains why we have leap years.
- A family discusses how the calendar changed over time.
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See also
- How Ancient People Kept Time?
- What is 31 days?
- Why Are There 7 Days In a Week? EXPLAINED?
- What are the first clocks?
- Why Are There Only 7 Days in a Week?