1583 - 9999


Make Your Own Calendar!

It's nice to be able to generate your own calendar for a particular year of your choosing, even if it is only to answer the question "On which day of the week did a particular date fall?". You might of course, wish to make your own calendar using pictures that you took with your camera - a personal calendar recording a year in the life of your family, friend or club.

You can use the program which you can download here, to make a calendar for any year in the range 1583 to 9999 inclusive. 1583 is when people started to use the Gregorian Calendar (see below) in earnest and 9999 - well who knows what will happen by then? (!!)

What you will see here

Introduction of the Gregorian Calendar

The Gregorian Calendar, which forms the basis of our present day date reckoning, kicked off in 1582. It was a modification, by Pope Gregory XIII, of the Julian Calendar, and more closely fitted the astronomical givens - namely the period of rotation of the earth around the sun. There is more about this in the references near the end of this page.

Pope Gregory XIII

Once Pope Gregory had initiated this calendar, other parts of Europe and the world gradually adopted it. However, the introduction of the Gregorian Calendar by various parts of the world was nevertheless a slow process, as this table, adapted from the sources below, shows. Even within a country, adoption could be slow: hence the dates for the Dutch Republic and the Holy Roman Empire should strictly read from 1582 and 1583 respectively.

It took several centuries for the Gregorian Calendar to be adopted world-wide.

Downloading and setting up the calendar program

Before proceeding, please bear the text at the link on Disclaimers, Copyright & "Readme" in mind. The executable files have been created to work in DOS-mode on the 32-bit 80386 processor and have been tested in the environment described on the associated page. I believe the executable files should also work correctly in DOS (Command-Prompt) mode on 64-bit machines.

Using the calendar program

Bear in mind that the calendar you generate will be relevant for any particular part of the world only from the time the Gregorian Calendar was introduced in that part of the world. For example, for Britain it would be relevant from 1752 onwards, and for Portugal already from 1582.

=== Have fun with the Calendar Program! ===

Sources and Attributions

Links for Historical Items

Attribution for Picture

On this web page, the picture of Pope Gregory XIII in the "history" section of this web page, is from the "Creative Commons®" initiative. This item is not being used here for commercial purposes, and therefore its use should be compliant with the terms of the Creative-Commons® license. If you, dear reader, have a legitimate legal reason as to why this should not be so, then please let me know via my "Please Read Me" page. In advance, Many Thanks!