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1Leap Year

A leap year is a year with 366 days, instead of the usual 365. Leap years are necessary because the actual length of a year is 365.242 days, not 365 days, as commonly stated. Leap years occur every 4 years, and years that are evenly divisible by 4 (2004, for example) have 366 days. This extra day is added to the calendar on February 29th.
https://www.thoughtco.com/history-of-leap-year-1989846

2Leap Year

A leap year is a calendar year containing one additional day added to keep the calendar year synchronized with the astronomical or seasonal year. Step 2 : Answer to the question “Who created the idea of Leap Year?” Julius Caesar: Leap Year was “invented” back in the first century BC, when Julius Caesar and his team of astronomers noticed …
https://www.try3steps.com/2018/02/ans-who-created-idea-of-leap-year.html

3Leap Year

A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) added to keep the calendar year synchronized with the astronomical year or seasonal year.
https://en.wikipedia.org/wiki/Leap_year

4Leap Year

Nearly every four years, we add an extra day to the calendar in the form of February 29, also known as Leap Day. Put simply, these additional 24 hours are built into the calendar to ensure that it …
https://www.history.com/news/why-do-we-have-leap-year

5Who created the idea of Leap Year?
Skipping three leap days every 400 years would keep the calendar and solar years in alignment, or at least closer to that goal—sometime near the year 4000 the current count will be one day off …
https://time.com/4237292/leap-year-leap-day-history/

6Who created the idea of Leap Year?
Step 1 : Introduction to the question “Who created the idea of Leap Year? Leap Year was “invented” back in the first century BC, when Julius Caesar and his team of astronomers noticed that their Roman calendar had somehow slipped out of sync with the seasons.
https://www.try3steps.com/2020/02/ans-who-created-idea-of-leap-year.html

7February 29

Leap Year was “invented” back in the first century BC, … According to the new rule, a century year could only be a leap year if it was divisible by 400. Thus, while 1900 was not a leap year, the year 2000 was. This small change formed the basis for the Gregorian calendar used today.
https://www.huffpost.com/entry/leap-year-2012-science-february-29-video_n_1309996

8Who created the idea of Leap Year?
So, who created the idea of leap year? If you’re looking for someone to thank for “inventing” the leap year, look no further than Julius Caesar (his “people,” rather). Caesar’s team of astronomers noticed, back in the first century BC, that their 355-day Roman calendar had fallen out of sync with the seasons.
https://www.distractify.com/p/who-created-the-idea-of-leap-year

9Leap Year

Gregory created a system that eliminates three leap years every 400 years. Century years that are divisible by 400 have a leap year, if they aren’t, they don’t have one. So we welcomed the turn of the 21st century with a leap year. But when we enter the 22nd century in 2100, there will be no leap year.
https://www.entitymag.com/how-many-days-are-there-in-leap-year/

10Leap Year

Who created the idea of Leap Year?-Benjamin Franklin-Julius Caesar-Leonardo Da Vinci-Isaac Newton. Answer: Leap Year was “invented” back in the first century BC, when Julius Caesar and his team of astronomers noticed that their 355-day Roman calendar had somehow slipped out of sync with the seasons.
https://what.youwacom.ma/2018/02/24/who-created-the-idea-of-leap-year-2017/

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Who created the idea of Leap Year?