8 Interesting Facts About Gregorian Calendar That Replaced Julian Calendar In 1582

Published by: ABP Live

Origin Of Gregorian Calendar

The Gregorian calendar is a refined version of the Julian calendar, introduced by Julius Caesar in 45 BCE to simplify the Roman calendar. Swipe to know 8 interesting facts about this calendar.

1. Named After Pope Gregory XIII

The calendar was introduced by Pope Gregory XIII in 1582, and it was designed to correct certain perceived inaccuracies in the Julian calendar and keep Easter aligned with the spring equinox.

2. Leap Year Logic

The Gregorian calendar adds a leap day every four years, but there’s a twist! Years divisible by 100 are not leap years unless they are also divisible by 400.

3. The Missing 10 Days

When the Gregorian calendar was introduced, 10 days were dropped in October 1582 to realign the dates with the solar year.

4. Not Adopted Instantly

Different countries switched to the Gregorian calendar at different times. England and its colonies didn’t adopt it until 1752 — nearly 200 years later!

5. The Controversy

When the Gregorian calendar was introduced, many Protestant countries rejected it at first, seeing it as a Catholic plot.

6. A Solar-Based Calendar

The Gregorian calendar is solar-based, aligning with Earth’s orbit around the Sun, which is why it’s so widely used today.

7. Shortest Month Oddities

February’s odd length is a result of ancient Roman calendar revisions and remains unique in the Gregorian calendar.

8. The Roman Roots

Many months in the Gregorian calendar have roots in Roman culture. January is named after Janus, the Roman god of beginnings and transitions. March comes from Mars, July from Julius Caesar.