Leap Day


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Not to be confused with National Time Refund Day, today is also Leap Day!

For a day that is celebrated only once every four years, the next celebration in 2024 (with some mathematical exceptions we’ll go over later), it sure seems to have a lot going on around it.

A leap year has devious explorers, beloved saints, partying border towns, and proposal-popping Irish ladies. And let’s not forget all the birthday babies. They do have some making up to do on the celebrating, you know!

Since the beginning of time, man has been improving how we keep it. That applies to calendars as well. Early Egyptians had a leap year in their calendar. The early Roman calendar had an entire leap month from time to time to keep the days in line with the astronomical year.

It was Julius Caesar and astronomer Sosigenes who revamped the Roman calendar giving it 12 months with equally (almost) distributed days and adding a leap day every four years.

In 1582, Pope Gregory XIII adjusted the calendar once again. Because the Earth revolves around the sun once every 365.2421 days, one leap day every four years is just slightly too much. Instead of shortening the leap day, the Gregorian calendar is designed such that leap days only happen every four years except for years evenly divisible by 100 but not 400.

There was no leap day in 1900, and there will not be one in 2100. So a baby born on February 29, 2096, will be in the 3rd grade on his 1st birthday!

And even this adjustment doesn’t keep the days perfectly aligned with the seasons. Those humans who are still around in 10,000 years will have to address those issues. It’s genuinely not a leap-day concern.

Leap Day is often associated with marriage, proposals, and flipping gender roles

Curiously, many Leap Day customs have revolved around romance and marriage. Tradition holds that in 5th-century Ireland, St. Bridget lamented to St. Patrick that women were not allowed to propose marriage to men. So legend has it that St. Patrick designated the only day that does not occur annually, February 29, as a day on which women would be allowed to propose to men. In some places, Leap Day thus became known as Bachelor’s Day.

This tradition hopped the Irish Sea to Scotland and England, where the British added a twist—if a man rejected a woman’s proposal, he owed her a debt of several pairs of fine gloves, perhaps to hide the fact that she did not have an engagement ring. In Greek tradition, however, it is considered bad luck to marry on Leap Day, and statistics suggest that Greek couples continue to take this superstition seriously.



A tradition that has its origins in 5th century Ireland allows women to propose marriage to a man on leap day. According to lore, Saint Brigid complained on behalf of young maids that their men were too shy to propose. To appease her, Saint Patrick declared that February 29th would be a day when women could propose.

The Scots took this tradition a step further. In 1288 Queen Margaret was rumored to have made it law that women could propose on February 29 but had to wear red petticoats to alert their men to their romantic intentions. There was a fine charged to the men who refused the proposal as well.

However exciting and firmly held the traditions may be, there is no documentation supporting the decree by Saint Patrick, and there is no law on the books in Scotland.

Despite the lack of proof, the tradition has continued. Men in upper-class European society who dared to refuse a proposal were obligated to protect the lady’s honor by giving her a gift; gloves to cover her un-ringed hand.

A reflection of this custom today, in some countries, February 29th is known as Bachelor Day.

A lunar eclipse on leap day 1504 had Christopher Columbus the perfect foil to trick the natives into continuing to provide supplies to his stranded expedition. Aware of the upcoming lunar eclipse, Columbus told the chief that his god was angry and would take away the moon as punishment and proof of his anger.

Hattie McDaniel, known for her role as Mammy in Gone with the Wind, was awarded the first Academy Award for an African American on leap day 1940.
Late on the evening of leap day 1960, in the city of Agadir in Morocco, the earth shook for 15 seconds. A small city of 2,500 was abruptly woken. The quake was considered a moderate one, but it devastated the city, killing two-thirds of its residents.

Catholics honor St. Oswald, a beloved saint who died on leap day in the year 972. His feast day is celebrated on February 28th every year.


Leap Day

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