Question

The beginning of Roman civilization was marked in 509 BC and it ended in 476 AD. For how long did the Roman civilization last?

Answer 1

B.C goes backwards (For eg. 32 B.C is a more recent year as compared to 320 B.C) and A.D goes forwards (32 A.D is older an era as compared to 320 A.D).

The Roman civilization lasted for
476 - (-509)
=476 + 509
=985 years