The Gregorian calendar we still use today was preceded by the Julian calendar, which in turn was preceded by the Roman republican calendar.
(Photo by Hulton Archive/Getty Images)] This was when Pope Gregory XIII decided to implement a new, reformed calendar – known as the Gregorian calendar in his honour.
The Julian calendar was used for the first millennium and part of the second millennium – but it featured an error which, though it seems small in hindsight, added up over time.
There’s a bizarre reason why 10 days are missing from October 1582 We’ve all scrolled back through the calendars on our phones to look up interesting dates.
But one historical event, decided in February of that year and coming into effect on October 5, completely changed the way we recognise dates.
