The eleven days came about because the long delay included the year 1700, introducing one more erroneous Leap Year day from the Julian calendar.
Thus genealogists have to deal with a long period of ambigous record dates for English and colonial records from 1 January through 24 March, in years prior to 1753.
By the ninth century, parts of southern Europe began observing first day of the new year on March 25 to coincide with Annunciation Day (the church holiday nine months prior to Christmas celebrating the Angel Gabriel's revelation to the Virgin Mary that she was to be the mother of the Messiah). However, England did not adopt this change in the beginning of the new year until late in the twelfth century.
Because the year began in March, records referring to the "first month" pertain to March; to the second month pertain to April, etc., so that "the 19th of the 12th month" would be February 19.
S.), but rather to record Julian dates with an Old Style, or (O.
S.) notation suffix, for example, "She dated her letter 21 February 1714 (O. Conversion simply introduces another error opportunity, and further removes the information from its original form. Therefore, one should be suspicious of bible records for, say ten children whose birth years range from 1743 to 1761, all appearing in the same handwriting.
If one is found to be clearly entered, then use "21 February 1704/5" or whatever form the recorder used.
The purpose of this article is to describe the reason for the calendar change, how it affects genealogical dating of early events, and how to record events dated during the transition period. D.) was used throughout the Middle Ages in most of Europe.
Impact of the Calendar Change on Genealogy Records The Julian Calendar (45 B. Genealogists must be aware that during most of this Julian calendar period the New Year began on March 25, and March was designated the "first" month -- even though only the last seven days of March fell in the "new year" as then defined.
Even now the Chinese and Islamic calendars are based on the motion of the moon around the earth, rather than the motion of the earth in relation to the sun, and the Jewish calendar links years to the cycle of the sun and months to the cycle of the moon. C., Julius Caesar ordered a calendar consisting of twelve months based on a solar year.
This calendar employed a cycle of three years of 365 days, followed by a year of 366 days (leap year).The changes implemented that year have created challenges for historians and genealogists working with early colonial records, since it is sometimes hard to determine whether information was entered according to the then-current English calendar or the "New Style" calendar we use today.