January wasn’t always the first month of the year—and in some places, it still isn’t.That simple fact explains why calendars ...

Our modern calendar is the Gregorian calendar, named for Pope Gregory XIII, who reformed it in 1582 to correct some errors in ...

In honor of Leap Day, this read is for the history nerds. Ever wonder how America caught our calendar up with the rest of the world? In September 1752, we skipped 11 days. According to NASA, the Earth ...

Tuesday’s Google Doodle celebrates the 434th anniversary of the Gregorian calendar, which was introduced on Oct. 4, 1582, by Pope Gregory XIII. The new calendar, introduced during the Renaissance, ...

ROME (AP) — Pope Gregory XIII, the 16th century pontiff responsible for the Gregorian calendar, now has another celestial claim to fame. ROME (AP) — Pope Gregory XIII, the 16th century pontiff ...

Happy Lunar New Year! According to the Chinese lunisolar calendar, the new year began Saturday. For many, like our host Regina G. Barber, this... The science and shared history behind the Gregorian ...

While the rest of the world celebrated January 1st, 2026, Ethiopia remained in its year 2018. This is due to the nation's ...

ROME – Pope Gregory XIII, the 16th century pontiff responsible for what is today known as the Gregorian calendar, now has another, celestial claim to fame. A working group of the International ...

How the days fly by! The calendar as we know it today may seem stodgy, but way back when it was a radical course correction. When he's not testing the latest phones or phone cameras, Andrew can ...