February 29

Today’s Today in Entrepreneurial History was harder to write than normal, because there’s only one February 29th at most every four years.

February 29, known as a leap day in the Gregorian calendar, is a date that occurs in most years that are evenly divisible by 4, such as 2004, 2008, 2012 and 2016. Years that are evenly divisible by 100 do not contain a leap day, with the exception of years that are evenly divisible by 400, which do contain a leap day; thus 1900 did not contain a leap day while 2000 did

Originally posted by Dane Carlson on February 29, 2012 in History.

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