Calendars through the Ages
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Calendars through the Ages


Calendars through the Ages

Logo for Calendars through the Ages
A history of the development of calendars throughout the ages.   This exhibit is a public service of the Institute for Dynamic Educational Advancement (IDEA).
Material Type: Presentation
Technical Format: HTML/Text
Date Added to MERLOT: February 03, 2007
Date Modified in MERLOT: May 02, 2014
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Submitter: James Rutledge
Keywords: timeline, the week, history of calendars, christian chinese indian jewish and arabic calendars, moon phases


  • Peer review 4.75 rating
    Peer Reviews: 4.75 rating
  • User review 4.67 average rating
  • User Rating: 4.67 user rating
  • Discussion (3 Comments)
  • Learning Exercises (none)
  • Personal Collections (none)
  • Accessibility Info (none)


Primary Audience: Grade School, Middle School, High School, College General Ed
Mobile Compatibility: Not specified at this time
Technical Requirements: standard Web browser
Language: English
Cost Involved: no
Source Code Available: unsure
Accessiblity Information Available: unsure
Creative Commons: unsure


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Discussion for Calendars through the Ages

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Avatar for Linda Scarpa
3 years ago

Linda Scarpa (Consultant)

This site promotes discovery through multidisciplinary approaches. It has a wonderful history of calendars and how they have changed through time. It cleverly presents the mathematics behind the adoption of different calendars. There is also an excellent "Do It Yourself" section, which presents a study of the phases of the moon. This would be a great activity for students of all ages. There are many activities that could be created from the information on site for science and mathematics.

Technical Remarks:

The web site uses the an interactive program called Spicy Nodes. It allows you to go to different areas quickly.  It is extremely helpful since the material is vast.

Time spent reviewing site: 30 minutes

Avatar for Joanna Monaco
4 years ago

Joanna Monaco (Student)

This is an interesting site dealing with how callendars came into effect, how different cultures/countries use callendars and even day lights saving time. It also has sections on laws and why they came into effect, how they affect the community and the after effects on them. As for math though, it has actually very little math related material which, since it is under the math section, is highly disapointing.
Time spent reviewing site: 10 min

Avatar for Cameron Seibly
5 years ago

Cameron Seibly (Student)

I always take interest in materials such as these due to the fact that it is something we deal with everyday, all the while, not really knowing the level of complexity that goes into calculating it all out. All this time I have never looked into other calendars around the world and it was very intriguing to see how the use the moon or the earth, or both in their calculations.