Missing 10 Days
Why Were 10 Days Skipped in October 1582? Explaining the Gregorian Calendar Reform

Discover why 10 days disappeared in October 1582 due to the Gregorian calendar reform by Pope Gregory XIII correcting the Julian calendar.

1582 Calendar Change
Why the Calendar Changed in 1582: The Gregorian Reform Explained

Discover why the Gregorian calendar was introduced in 1582 and its impact on timekeeping.