Before Present (BP) years, or years before present is a time scale used mainly in archaeology, geology, and other scientific disciplines to specify when events occurred before the origin of practical radiocarbon dating in the 1950s.

What is BP anthropology?

The initials BP (or bp and rarely B.P.), when placed after a number (as in 2500 BP), means years Before the Present. Archaeologists and geologists generally use this abbreviation to refer to dates that were obtained through the radiocarbon dating technology.

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A normal blood pressure level is less than 120/80 mmHg. No matter your age, you can take steps each day to keep your blood pressure in a healthy range.