Wikimedia
Wikipedia: The Hebrew, or Jewish, Calendar
An encyclopedia entry about the Jewish calendar with information on the history of the calendar as well as on the modern Jewish calendar, which dates from 3761 BCE. Names of the months, length of the months, leap years, and similar...
University of Nebraska
Carbon 14 Dating Calendar
Provides a Carbon 14 Dating Calculator to compute the percent of Carbon 14 remaining after a given number of years. Also calculates how many years have elapsed from how much Carbon 14 remains.
Ohio State University
Ohio State University: A Brief Introduction to the Islamic (Hijri) Calendar
Provides background information about the Islamic Calendar, also called the Hijri. Explains the differences between the Gregorian calendar and the Islamic Calendar; lists important holidays and the months of the Islamic year. Provides...
TED Talks
Ted: Ted Ed: The Leap Year Explained
Every four years, we gain an extra calendar day. Neil deGrasse Tyson explains the science behind the leap year. [3:22]
Project Britain
Project Britain: Calendar of British Holidays in the Uk
Holidays help us celebrate who we are and who we were! Many of these celebrations are centuries old. Click on each month for an explanation of each holiday and the days it falls on for a specific year.
NumberNut
Number Nut: Calendar Origins
History and mathematics merge in this lesson that explores the origin of the calendar. Learn how it all got started in this detailed lesson that includes a simple months of the year game and a more challenging time conversion game. Both...
ClassFlow
Class Flow: First Grade Math Calendar
[Free Registration/Login Required] This flipchart is a calendar activity that takes place each morning. The students are introduced to a variety of standards. The students continue to build on their learning and the calendar becomes a...
NumberNut
Number Nut: What Is a Year?
Discover the relationship between mathematics and a year. Examine key vocabulary and number facts that will help you understand why learning about years can help build your number sense. This lesson also includes two interactive games.
Institute for Dynamic Educational Advancement
Our Year
The concept of a year in time and the various kinds of year used in human timekeeping are discussed.
Institute for Dynamic Educational Advancement
Web Exhibit: The Islamic Calendar
This website gives very detailed information about all aspects of the Islamic calendar.
Institute for Dynamic Educational Advancement
Web Exhibit: The Christian (Julian) Calendar
This website gives very detailed information about all aspects of the Christian (Julian) calendar.
EL Education
El Education: Calendar of Forest Park
This calendar was created by 1st grade students in Springfield, Massachusetts, as part of their "Parks as a Neighborhood Resource" Learning Expedition. Students investigated a neighborhood resource while also learning about the function...
Institute for Dynamic Educational Advancement
Web Exhibit: The Jewish Calendar
This website gives very detailed information about all aspects of the Jewish calendar.
Institute for Dynamic Educational Advancement
Web Exhibit: The Chinese Calendar
This website gives very detailed information about all aspects of the Chinese calendar.
Other
The Maya Calendar: A Converter
Gives the Mayan days and months. In addition, a Java Applet is included which will convert any date (Gregorian calendar) to its corresponding Mayan date.
Randall Davis
Esl Cyber Listening Lab: Basic English Quiz: Calendars and Dates
This site has a self-scoring listening vocabulary exercise for English language learners that focuses on months, days, and years.
Teacher Planet
Teacher Planet: Chinese New Year Resource Page
Great site for lesson plans and activities centered around the Chinese New Year. Find sources on the history of the holiday, traditions, dragon costumes, and clipart.
Authors Calendar
Author's Calendar: Daniel Defoe
This site gives a thorough biography of Defoe. It includes quotes from his writing and information about his most important works.
Wolfram Research
Wolfram Science World: Islamic Calendar
A very brief description of the Islamic calendar, which "has its starting point at the date of the flight of Mohammed from Mecca to Medina." Describes the format of the Islamic year in comparison to the Gregorian calendar.
Other
Mayan Calendar
While brief, this simple explanation of the Mayan calendar may clarify for some how its two cycles work together.
Other
China the Beautiful: Chinese New Year
Learn about the Chinese New Year and the Chinese calendar.
Ducksters
Ducksters: Kids History: Calendar of Ancient China
Explore the calendar of Ancient China by learning the history, what the animal years mean, the legend, and fun facts on this site.
ClassFlow
Class Flow: October 2005 Calendar
[Free Registration/Login Required] A variety of activities all having to do with the calendar; days of the week, months of the year, Pledge, and counting.
ClassFlow
Class Flow: Calendar
[Free Registration/Login Required] Working with a one year calendar to identify various days and dates.