Look at perpertual calendars for the 20th and 21st century
Below you will find the perpetual calendars for the 20th and 21st century in both the 3 column and 4 column format:
There are two sets of Calendars, one that has three months across, the other with four months across. These are each organized in the format below:
Years (1901 - 2100) in 3 Column Format
Years (1901 - 2100) in 4 Column Format
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