New Year's Day
History
Because of the leap year error in the Julian calendar, the date of Easter had drifted backward since the First Council of Nicaea decided the computation of the date of Easter in 325. By the sixteenth century, the drift from the observed equinox had become unacceptable. In 1582, Pope Gregory XIII declared the Gregorian calendar widely used today, correcting the error by a deletion of 10 days. The Gregorian calendar reform also (in effect) restored 1 January as New Year's Day. Although most Catholic countries adopted the Gregorian calendar almost immediately, it was only gradually adopted among Protestant countries. The British, for example, did not adopt the reformed calendar until 1752. Until then, the British Empire  – and its American colonies  – still celebrated the new year on 25 March.
New Year's Day-8