Question

The Roman Republic lasted about how many years?

Answer 1

Over 1000 years... It began with the overthrow of the ROMAN monarchy c. 509 BC and lasted 450 years until its subversion in 29 BC

Answer 2

It began with the overthrow of the Roman monarchy, c. 509 BC, and lasted over 450 years until its subversion in 29 BC, through a series of civil wars, into the Principate form of government and the Imperial period.