Calendars & Dates » General Resources

A History of the Western Calendar

A Medieval English Calendar

This is a version of the Julian calendar, as used in England, covering the 11th to 16th centuries.

A Summary of the International Standard Date and Time Notation

International Standard ISO 8601 specifies numeric representations of date and time. This standard notation helps to avoid confusion in international communication caused by the many different national notation.

Brenda's Branches - Time Period Approximation Chart

Helps you to determine time periods to search in with limited data to begin the search.

Calendar Zone

Calendars and Their History

Calendars from 1800-2050

Calendars Through The Ages

Explore the fascinating history of the human endeavor to organize our lives in accordance with the sun and stars.

Calendopaedia - The Encyclopaedia of Calendars

History & information on a variety of calendar systems.

Chronology and Dating

Date Finder from Solsup

Date Finder & Date Finder Plus, new iPhone/iPad apps, will provide valuable assistance to people researching their family history. When you are researching your family history and you encounter two documents containing the name of a person you are interested in from different dates, the challenge is to determine if they refer to the same person. Date Finder allows you to enter the date and persons age from one document. You can then easily scroll to the date on the other document to see if then documents align and both refer to the same person.

Historic Calendars of Europe

A form to generate the type of calendar used for a particular year.

History & info - the Islamic calendar

Ian's English Calendar

Kalenderblatt / Calendar Sheet

This website is in German, but can be switched to English. This contains calendars for Gregorian, Julian, Medieval, Romanvm, Jewish and Neojulian.

Marking Time - A History of the Months and the Meanings of their Names

One-Step Webpages by Stephen P. Morse

Alternate search functions for many online databases. Includes tools for immigration, census, vital records, calendars, soundex, foreign alphabets, Jewish and Holocaust research.

Parallax View - Measurement Tools

Various data-value tools, including several date-specific ones: (1) subtracting dates to get number of intervening days, (2) adding/subtracting a duration to one date to obtain another, (3) determining range of possible birth dates given any document with an age, and (4) date-range analysis, displaying overlapping sections of multiple ranges.

Past Mardi Gras Dates

New Orleans, Louisiana.

Persian Calendar