Question

Which Roman era lasted the longest: The Roman monarchy, the Roman republic, the Western Roman Empire or the Byzantine Empire?

Answer 1

The Roman Monarchy was the longest lasting Roman Era!  Hope this helps!

Answer 2

Hello there
753B.C.E.-509B.C.E. roman monarchy
509B.C.E.-27B.C.E. roman republic
395C.E.-476C.E.western roman empire
395 C.E.-1453C.E. byzantine empire(eastern)
27b.c.e.-395c.e. is unidentified
means Byzantine is the longest
~hope i help~