Answer:
I'd say Augustus
Step-by-step explanation:
Augustus is the first emperor, and although his reign only lasted for 40 years, his legacy of the Pax Romana kept Rome thriving for the next 2 centuries or potentially even longer!
Trajan or long name Marcus Ulpius Trajanus
Trajan left the largest Empire in Rome’s history
He was the most successful military man in Roman history, expanding the Empire to its greatest extent.
5.3m questions
6.8m answers