um... I think what you're asking is, when did we start using our current calendar system? If that's what you mean, we adopted the Gregorian calendar in 1582.
Below is from wikipedia...
The Gregorian calendar is the most widely used calendar in the world. A modification of the Julian calendar, it was first proposed by the Calabrian doctor Aloysius Lilius, and was decreed by Pope Gregory XIII, for whom it was named, on 24 February 1582 via the papal bull Inter gravissimas. Years in the calendar are numbered from the traditional birth year of Jesus, which has been labeled the "anno Domini" (AD) era, and is sometimes labeled the "common era" or the "Christian Era" (CE).
The Gregorian Calendar was devised both because the lunar calendar had grown conspicuously wrong, and the mean Julian Calendar year is slightly too long, so that the vernal equinox slowly drifts backwards through Julian calendar years. This caused problems in computing the date of Easter.
The Gregorian calendar system dealt with these problems by dropping a certain number of days to bring the calendar back into synchronization with the seasons, and then slightly shortening the average number of days in a calendar year, by omitting three Julian leap-days every 400 years. The days omitted are in the century years (specifically: 29 February 1700, 1800, 1900; 2100, 2200, 2300; 2500, 2600, 2700; 2900, etc., are dropped).
2007-04-17 07:36:03
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answer #1
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answered by aspicco 7
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Well, actually, we've always counted forward. It has only been after the fact that people (mainly the church) started labelling the time around when Jesus was born to be the beginning of the calendar A.D. and the time before that to be B.C. Before they did that, Different places had their own calendars (which counted forward).
2007-04-17 14:08:07
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answer #2
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answered by joannaserah 6
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When we figured out counting backwards just wasn't going to work....oh, somewhere in the neighborhood of 5,500 BC....
2007-04-17 19:19:09
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answer #3
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answered by Its not me Its u 7
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we started to count forward after we started to get smaller and younger and youger. then we decided we wanted to get older and thats about the time jesus was born and he got all the jews and romans and ethiopians to eat gouda cheese and we all partied for 2,000,000 years till the cows came home. yeah good times.
2007-04-17 14:42:58
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answer #4
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answered by him 1
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33 a.d.
2007-04-17 14:19:05
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answer #5
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answered by tmlamora1 4
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