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Julian and Gregorian Calendars: Difference between revisions
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The official [http://astro.nmsu.edu/~lhuber/leaphist.html calendar] used in most of the modern world today is the Gregorian Calendar, named after Pope Gregory. It is based on a standard year of 365 days with modifications to keep it consistent with the earth’s movement around the sun. It replaced the old Julian Calendar | The official [http://astro.nmsu.edu/~lhuber/leaphist.html calendar] used in most of the modern world today is the Gregorian Calendar, named after Pope Gregory. It is based on a standard year of 365 days with modifications to keep it consistent with the earth’s movement around the sun. Thought not perfect, the Gregorian Calendar will take 3300 years before being one day off. It replaced the old Julian Calendar instituted in 46 BC and named after Julius Caesar. | ||
The old Julian Calendar assumed the earth went around the sun in 365.25 days. For this calendar to follow the earth’s movement, this rule was used - Every year that is divisible by 4 was made a leap year of 366 days, otherwise it was a standard year of 365 days. | The old Julian Calendar assumed the earth went around the sun in 365.25 days. For this calendar to follow the earth’s movement, this rule was used - Every year that is divisible by 4 was made a leap year of 366 days, otherwise it was a standard year of 365 days. | ||
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| 1600<ref name="Blackburn">Blackburn &amp;amp;amp;amp;amp; Holford-Strevens (1999), p. 784.</ref><ref>John J. Bond, ''[http://books.google.com/books?id=bzAWAAAAYAAJ&amp;amp;amp;amp;amp;printsec=frontcover#PPR17,M1 Handy-book of rules and tables for verifying dates with the Christian era]'' Scottish decree on pp. xvii–xviii.</ref> | | 1600<ref name="Blackburn">Blackburn &amp;amp;amp;amp;amp;amp; Holford-Strevens (1999), p. 784.</ref><ref>John J. Bond, ''[http://books.google.com/books?id=bzAWAAAAYAAJ&amp;amp;amp;amp;amp;amp;printsec=frontcover#PPR17,M1 Handy-book of rules and tables for verifying dates with the Christian era]'' Scottish decree on pp. xvii–xviii.</ref> | ||
| 1752 | | 1752 | ||
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