What is a leap year and what are the reasons for calling it?

Weather of Arabia - The leap year is repeated every 4 years, when a day is added to the 28th of February for 29 days, and the importance of this day comes because the Gregorian calendar without it will be wrong.

It takes 365 days and a quarter today to complete its rotation around the sun, and for the calendar to be correct, the extra quarters were collected each year on February 29 , and without the leap year there will be a late every 4 years.

And the Emperor Julius Caesar was the reason behind calling this year a leap , when he asked scholars at that age to prepare a better calendar for people to follow in the empire at the time.

It was the scientist Susie Genius who prepared the modern calendar used today. The simple method of calculating the leap year is based on dividing the year number by the number four, and if the division succeeds and the result is a valid number, the year is a leap, and if the division does not succeed and does not produce a correct number, the year is not leap.

In 1582, scholars announced the Gregorian calendar, which added a new condition for calculating the leap year , which is that the year will be a leap if it divides by 100 and by 400 as well.

For example: The year 2000 accepts division by 4, 100, and 400; so it is leap, while the years 1700, 1800, or 1900 are not leap years, and February has only 28 days; it accepts division by 4, 100, and does not accept by 400.

One of the leaps of the leap year is that people born on February 29 celebrate their birthday every 4 years or celebrate it at the beginning of March.