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Genealogy
> Library > Julian to Gregorian Calendar
Julian to Gregorian Calendar
When the original change occurred there really were people who
believed the Church had "stolen" 10 days from their
lives... and they would now die 10 days earlier than originally
intended. Also, Protestant and Eastern Orthodox controlled lands
ignored the Roman Catholic decree.
Does this mean that official documents dated after the changeover
refer to the Gregorian
Calendar? Not a chance. Some people added
"OS" (Old Style) or "NS" (New Style) while
others just wrote the day... using whichever calendar date that
made sense to that person. Be very careful when using dates around
a changeover year, and for some years after. It really is hard
to get people to change old habits...
The Julian
Calendar is currently 13 days behind the Gregorian
Calendar (2003). Many Orthodox Churches still use the Julian Calendar
as the standard for the church.
| Country/Region |
Year |
Days |
Comments |
| Italy, Portugal, Spain |
1582 |
10 |
4 Oct 1582 Julian was followed
by 15 Oct 1582
Includes all Spanish colonies and possessions, such as Mexico |
| France |
1582 |
10 |
20 Dec followed 9 Dec
French possessions, such as Louisiana in North America, used the
Gregorian Calendar from their founding. |
| Luxembourg |
1582 |
10 |
25 Dec followed 14 Dec |
| Zeeland, Brabant, and the Staten
Generaal in modern-day Netherlands |
1582 |
10 |
25 Dec followed 14 Dec |
| Limburg and several other
provinces |
1582/3 |
10 |
31 Dec followed 20 Dec
1 Jan 1 followed 21 Dec in some cases
Wonder what people thought of not having Christmas? |
| Holland |
1853 |
10 |
12 Jan followed 1 Jan |
| Switzerland |
1583-
1812 |
--- |
Parts of Switzerland made the
change over many centuries, starting in 1583 and only being complete in
1812. |
| German Roman Catholic states,
Belgium, and part of The Netherlands |
1584 |
10 |
|
| Hungary |
1587 |
10 |
|
| Prussia |
1610 |
10 |
|
| Alcase |
1682 |
10 |
|
| Protestant German states including
Prussia |
1700 |
11 |
Many of these states calculated
Easter using the Tycho Brahe's method, but used the new calendar for
civil and commercial affairs. They adopted the Gregorian rules for
calculating Easter in 1776. |
| The Netherlands |
1700 |
11 |
All of The Netherlands used the
same calendar in this year. |
| Denmark, Norway |
1700 |
11 |
|
| Sweden starts change |
1700 |
|
Sweden phased in the change from 1700 to
1740 by exluding leap days. |
| Sweden reverts back to Julian Calendar |
1712 |
|
|
| Tuscany |
1750 |
11 |
|
| England, Scotland, Ireland, and
Wales |
1752 |
11 |
Wednesday, September 2, 1752
gave way to Thursday, September 14th. The first day of the year was also
changed from March 25 to January 1. |
| English colonies including present-day USA,
Australia, and Canada |
1752 |
11 |
|
| Finland |
1753 |
11 |
|
| Sweden |
1753 |
11 |
Sweden finally made the switch in one change
when 17 Feb was followed by 1Mar |
| Lorraine |
1760 |
11 |
28 Feb followed 16 Feb |
| Alaskan Territory |
1867 |
11 |
This change to the new calendar
occurred when the United States purchased Alaska from Russia. |
| Japan |
1873 |
11 |
|
| Egypt |
1875 |
11 |
|
| Thailand |
1889 |
-- |
Kinda... |
| China |
1911 |
|
Again in 1949... not sure when
they reverted. |
| Albania |
1912 |
|
|
| Latvia |
1915? |
|
|
| Lithuania |
1915 |
|
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| Bulgaria |
1916 |
|
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| Russia |
1918 |
12 |
14 Feb followed 31 Jan
The Revolution of 1918 allowed reformers to adopt the calendar in use
by most of their trading partners.
The Russian Imperial Navy and academics
dealing with westerners had been using the new calendar for many years
(decades in some cases) but the internal civil calendar did not change
until 1918. |
| Estonia |
1918 |
12 |
|
| Romania |
1919 |
|
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| Yugoslavia |
1919 |
|
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| Greece |
1923
or
1924 |
12 |
There is some disagreement about
when Greece changed. |
| Iran |
1925 |
12 |
|
| Turkey |
1927 |
12 |
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