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Britain's switch to the Gregorian calendar in 1752 and the 11 days that disappeared
On 2 September 1752 Great Britain switched from the Julian calendar to the Gregorian, some 170 years after Pope Gregory XIII proposed abandoning the outdated system of reckoning time. And so, in Britain in 1752, 2 September was followed directly by 14 September. Eleven days vanished from the history of