Feb. 29 is more than just an extra day we have once every four years. There is some science behind it. Here's how leap days ...

Revolutionary as the Julian calendar was, it wasn't perfect, and fell out of alignment over time. In 1582, Pope Gregory XIII introduced the Gregorian calendar-- basically, the calendar as we know ...

Metro has the answers. The Gregorian calendar we still use today was preceded by the Julian calendar, which in turn was preceded by the Roman republican calendar. The Julian calendar was used for ...

The original Roman calendar divided the year from March to December into 10 months of either 29 or 31 days, based on lunar ...

Teymour Taj celebrates the beginning of 2025 by exploring the weird and wonderful history of calendars As 2025 rolled in, ...

In 1752, from Sept. 3rd to 13th, people witnessed a unique historical event. Eleven days were cut from the calendar and deleted forever.

Gregorian or English calendar was born after the Julian calendar of Julius Caesar, based upon Greenwich Mean Time (GMT), which is counted from midnight. The Kal Yug calendar of India is in its ...

Meanwhile, while the former group - which is the most common and includes nations like the UK, France, Spain and Germany - also originally used the Julian calendar, they changed to the Gregorian ...

It is marked as January 1 in the Julian calendar, which was used before the Gregorian calendar. Some countries, including Italy, Poland, Portugal, and Spain, accepted the Gregorian calendars ...

Play the USA TODAY Daily Crossword Puzzle. In 2026, Easter will be April 5 based on the Gregorian calendar and April 12 based on the Julian calendar. Why isn't Easter on a set day? According to ...

By the mid-15th century, the Julian calendar had diverged from the solar cycle by 10 days. To correct this, Pope Gregory XIII introduced the Gregorian calendar in the 1570s, refining leap year ...