LEARN HISTORY FOR BETTER UNDERSTANDING

You may think that you have a modern, well-informed perspective on life.Perhaps, but can it be improved? Consider time.Your time. Country’s time.Infinite time.

Perspective was a term applied to paintings where objects were painted in a regular accurate way from a single viewpoint.Objects in the painting until then were just bigger or smaller, unadjusted for one’s position.Perspective today means point of view.

Today’s calendar is called the Gregorian Calendar.Devised because the older Julian calendar was off scientifically by ten days

TheGregorian calendar was decreed in 1582 by the papal bull Inter gravissimas by Pope Gregory XIII, to correct an error in the Julian calendar that was causing an erroneous calculation of the date of Easter. The Julian calendar had been based upon a year lasting 365.25 days, but this was slightly too long; in reality, it is about 365.2422 days,[b] and so over the centuries, the calendar had drifted increasingly out of alignment with the Earth's orbit. According to Gregory's scientific advisers, the calendar had acquired ten excess leap days since the First Council of Nicaea (which established the rule for dating Easter in AD 325).

So everything was too high by 0.0078 per year and it all added up.Makes one realizes that exactitude matters. The West adopted the Gregorian first.

The provided URL contains extensive information about the adoption of the Gregorian calendar across different regions and centuries. Here's a summary focusing on the five largest countries adopting it in the 16th, 17th, 18th, 19th, and 20th centuries:

16th Century

• Spain: Adopted in 1582, following the papal bull by Pope Gregory XIII. The day after October 4, 1582, became October 15, 1582.

• France: Adopted in December 1582, with December 9 followed by December 20.

• Portugal: Adopted in 1582, alongside Spain.

• Italy: Adopted in 1582, as part of the Papal States.

• Poland-Lithuania: Adopted in 1582.

17th Century

• Prussia: Adopted in 1612 under the influence of Catholic Poland.

• Scotland: Adopted in 1600, earlier than the rest of Great Britain.

• Netherlands (Provinces): Some provinces adopted it in the early 17th century.

• Denmark-Norway: Adopted in 1700 (transition began in the late 17th century).

• Sweden: Began a gradual transition in 1700.

18th Century

• Great Britain and Colonies: Adopted in 1752, with September 2 followed by September 14.

• Sweden: Completed the transition in 1753.

• Switzerland (Protestant Cantons): Adopted in the 18th century.

• Russia: Did not adopt until the 20th century, but neighboring regions began transitioning.

• Germany (Protestant States): Adopted in 1700.

19th Century

• Japan: Adopted in 1873, replacing the traditional lunisolar calendar.

• Egypt: Adopted in the late 19th century for civil purposes.

• China: Began using the Gregorian calendar in the early 20th century.

• India: Transitioned in the late 19th century for administrative purposes.

• Korea: Adopted in 1896.

20th Century

• Russia: Adopted in 1918 after the October Revolution.

• China: Officially adopted in 1912 with the Republic of China.

• Turkey: Adopted in 1926.

• Greece: Adopted in 1923.

• Vietnam: Adopted in 1954.

This timeline highlights the gradual and regionally varied adoption of the Gregorian calendar, influenced by religious, political, and cultural factors. For more detailed information, you can refer to the original source1.

Footnotes

1. https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar#Adoption_in_Eastern_Europe↩

Sources

https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar#Adoption_in_Eastern_Europe

https://en.wikipedia.org/wiki/Adoption_of_the_Gregorian_calendar#Adoption_in_Eastern_Europe