Leap Year / Leap Day Statistics, History and Facts (2021)



Here are a few of the most interesting Leap Year / Leap Day statistics and facts I was able to dig up in my internet travels. As always, be sure to check back in the future as I will be updating this post as new and updated stats become available.

Leap Year Leap Day Facts, History and Stats

What is Leap Year?

Every four years, there are 366 days in the calendar year instead of 365, with 29 days in February (Leap Day) instead of 28.


Which years are leap years?

Basically, every year that is a multiple of 4. The exception being centurial years that are not divisible by 400 (IE: 1700, 1800, 1900).


Why do we have leap year?

To synchronize the calendar year with the astronomical (solar) year. It actually takes the Earth 365.24219 days to orbit the Sun, so the additional fraction of a day adds up to a full day every four years.


Who created leap years?

Julius Caesar in 45 BC


Person that created the term ‘leap year’:

Pope Gregory XIII


When was Leap Day 2020?

Saturday, February 29, 2020


Number of people in the world that were born on a Leap Day:

5 million

Last updated 2/20/20


Odds of someone being born on a Leap Day:

1 in 1,461


Name for people that were born on a Leap Day:

Leaplings

Please note that some of these numbers are easier to find than others. These Leap Year / Leap Day stats are based on news reports and not official company tallies. No information contained on DMR should be relied upon to make investment decisions. Basically, this is the best I can find and I don’t guarantee anything to be 100%.