The Story of Clocks and Calendars

The Story of Clocks and Calendars

Travel through time with the maestros as they explore the amazing history of timekeeping!

Did you know that there is more than one calendar? While the most commonly used calendar was on the year 2000, the Jewish calendar said it was the year 5760, while the Muslim calendar said 1420 and the Chinese calendar said 4698. Why do these differences exist? How did ancient civilizations keep track of time? When and how were clocks first invented?

Find answers to all these questions and more in this incredible trip through history.

January 1, 2001, will mark the beginning of a new thousand-year period on earth.But our earth is more than four billion years old, and humans have lived on our planet for perhaps two hundred thousand years. So how can it be the year 2000? The answer is that it is the year 2000 only on the Gregorian calendar. On the Hebrew calendar, the year will be 5760. On the Muslim calendar, the year will be 1420. And on the Chinese calendar, it will be 4698. So what year is it really? It all depends on what calendar you use and when you started counting the years. Here is the fascinating story of how, over thousands of years, calendars and clocks came to be. 00-01 Young Reader's Choice Award Program Masterlist Notable Children's Trade Books in the Field of Social Studies 2000, National Council for SS & Child. Book Council

Year 3: Measuring Time
In Key Stage Two, teaching children about Measuring Time can be an exciting journey filled with hands-on STEM activities. As we gear up for British Science Week, here are six free and engaging activities to spark curiosity and learning in your students.

  • Publisher: HarperCollins
  • Format: Paperback
  • Print length: 48 pages
  • Dimensions: 10.68 x 9.26 x 0.16 inches
  • Reading age: 6 - 10 years old
  • Publication date: November 2, 2004
  • ISBN: 978-0060589455

Betsy and Giulio Maestro

Betsy Maestro is the author of the "American Story" series, illustrated by her husband, Giulio. She has also written several other non-fiction picture books, including the Let's-Read-And-Find-Out science books How Do Apples Grow? and Why Do Leaves Change Color?

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