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- The 1st century is the time from 1 to 100.
- Note that there was no year 0; the year 1 BC is immediately followed by 1 AD.
The AD/BC notation does not use a year zero; however, astronomical year numbering does use a minus sign, so '2 BC' is equal to 'year -1', '1 BC' is equal to astronomical 'year 0', and so forth. In the Gregorian system, the NNth century AD starts in the base year 'NN-100+1' and ends in the 'NN'th year, so for example, the 16th century begins on January 1st, 1501 and ends December 31st, 1600.
However, year order is reversed in BC since there is no year zero and no century zero creating a ninety-nine year shift, so the calculation is 'Nth century BC' begins in year 'N BC' and ends in 'N-99 BC' so that the third century BC, begins in 300 BC and ends 201 BC.
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(1st millennium BC - 1st millennium - 2nd millennium)
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Subcategories
This category has the following 24 subcategories, out of 24 total.
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Pages in category "1st century"
The following 16 pages are in this category, out of 16 total. Updates to this list can occasionally be delayed for a few days.
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C cont.
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