Answer:
-height of the Roman Empire
-fall of the Roman Empire
-Gregory I becomes Pope
-height of the medieval period
Step-by-step explanation:
The height of the roman empire, or the greatest time for the roman empire was when it had the largest territory and that time was between the 98 and the 117 AD.
The fall of the Roman empire is divers for many historians but its common agreed that it happened in 476 AD, with the fall of the western roman empire.
Gregory I became pope in September 3, 590 AD and he was pope untill March 12th, 604 AD.
The height of the medieval period came around the 11th century.