Today is 14th September, the previous date would universally be accepted as 13th September. But this was not the case in 1752 in Britain.
As part of the switch from the Julian calendar to the Gregorian calendar (which we use now) and to realign the days with the seasons, 11 days were skipped. The day after 2nd September was the 14th September.
I wonder how our computers would have coped with such a blip? I wouldn’t want to pay interest on my mortgage for them, but would be happy to be paid for the whole month.
Don’t get me started on the new year beginning on 25th March – that’s for another day.