Ever wonder why February is the only month with 28 days?
The makeup of the calendar goes back to the days of the Roman Empire when Julius Caesar was emperor, and has evolved over the centuries to today with seven months having 31 days (January, March, May, July, August, October and December), four months with 30 days each (April, June, September and November), and February with 28, except every fourth year, leap year, when it has 29.
The reason for leap year is because the actual number of days needed each year for the annual cycle is 365 ¼. Since the calendar days total 365 in normal years, an extra day is needed every fourth year to make up for the extra quarter of a day.
Why not change the calendar so that there are five months with 31 days each and seven (including February) with 30 days each? The total is still 365, and for leap year, another day can be added to one of the 30-day months. This is more consistent.
Apparently, the explanation is not a simple one. Caesar decided to go away from a calendar based on the 12 lunar cycles because the months and seasons fell out of sync. He developed one using a solar calendar of 365.25 days that is basically the makeup in use today. But it still doesn’t explain why February normally has 28 days when the other 11 months have 30 or 31.
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