I just ran across this in a book and I thought that maybe you all would find it interesting. I know I have a couple dates where it is marked 1752/53. Maybe this will help others. Carolyn "The year 1752 is important to remember as you begin your genealogical research. The Julian calendar was supplanted by the Gregorian calendar in the Roman Catholic countries in 1582. But it's acceptance in Great Britain and her colonies did not occur until 2 September 1752. Eleven days were added to the count to compensate for an accumulation of errors in the Julian calendar. There are interesting tales about people gathering in mobs to protest taking away 11 (eleven) days of their lives! However; the other change made at that time is a little more difficult to perceive. Because of differing customs among the settlers, the New Year began on 25 March or on Jan 1st. When the calendar was changed, the Parliament also established 1 January 1752 as the legal New Years Day. Birthdays of people then had to be expressed as Old Style or New Style. For example, a date would be written as 14 February 1727/28 (or 1727/8). This means that the event took place in 1727 if the year was thought to begin on 25 March but the birthdate was in 1728 if the year was thought to begin on 1 January. Since the 25 March date is the turning point, only dates from 1 January to 24 March have to be indicated in the above way."