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

Because those days didn't exist – the British Calendar Act of 1751 had abolished them. Until this day in 1752, Britain was using the Julian calendar, designed by Sosigenes of Alexandria and ...

The bill eventually passed through Parliament and implemented calendar reform on Sept 2nd, 1752, which was immediately followed by Thursday 14th - technically removing eleven days out of the month.