Talk:Proleptic Gregorian calendar
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[edit] AD 4 vs 45 BC
The Julian calender wasn't in use from AD 4 but 45 BC! Rich Farmbrough 08:50, 24 Jun 2005 (UTC)
- The last paragraph could be worded a little better. But the Julian calendar that we are familiar with did not begin until AD 4. The Julian calendar that began 45 BC had a leap year every three years instead of a quadrennial leap year. In 8 BC, Caesar Augustus removed the excessive leap years by not allowing any more leap years until AD 4, which was the first leap year of the medieval Julian calendar. See Julian calendar for all the details, especially leap years error. — Joe Kress 02:57, 25 Jun 2005 (UTC)
[edit] Astronomical vs. ordinary year notation
Astronomers usually note years before 1 A.D. by negative numbers (e.g. the year -4 etc.), not by use of "B.C.", so there's not all that much chance of confusion... AnonMoos 13:01, 24 September 2006 (UTC)
- On the contrary, several modern historians use negative numbers for years BC, but their negative years differ by one year from the astronomer's year because these historians do not use a year zero, placing −1 immediately before 1, creating endless confusion. — Joe Kress 19:23, 25 September 2006 (UTC)
[edit] Merge
I object to the merge of most of the section Gregorian calendar#Proleptic Gregorian calendar into this article, especially those paragraphs, which comprise most of it, which discuss dates after 1582. Although I don't necessarily object to merging the remainder of the section discussing years before 1582, because that would leave only one small paragraph, I think any merger is useless. — Joe Kress 23:01, 18 November 2006 (UTC)
