In England, Wales, Ireland and Britain's American colonies, there were two calendar changes, both in 1752. The first adjusted the start of a new year from Lady Day (25 March) to 1 January (which Scotland had done from 1600), while the second discarded the Julian calendar in favour of the Gregorian calendar, deleting 11 days from the calendar for September 1752 to do so. To accommodate the two calendar changes, writers used dual dating to identify a given day by giving its date according to both styles of dating.