BC (Before Christ) versus BCE (Before the Current Era)

[beaglelady]

@jpm

Sort of interesting. Some lock BP to start at January 1, 1950. So we are living in -69 BP?

Paleontologist Ross MacPhee used BP in his book “End of the Megafauna,” and in his SciCafe talk. That’s where I first heard it used. In the book’s glossary, he notes that BP means Before Present. He also explains that original radiocarbon dates are separately designated as “radiocarbon years BP,” calculated as years before 1950 CE.