Before Present
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Before Present (BP) years is a time scale used in archaeology, geology, and other scientific disciplines to specify when events in the past occurred. Because the "present" time changes, standard practice is to use 1 January 1950 as the arbitrary origin of the age scale. For example, 1500 BP means 1500 years before 1950, that is, in the year 450 AD.
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See also
- Annum
- Before Christ (BC)
- Before Common Era (BCE)
- Holocene calendar
- Mya
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