Why was the Roman Empire the center of the ancient world

Founded on the banks of the Tiber river in 753 B.C., according to legend, by Romulus and Remus, Rome was first the centre of the Roman Republic, then of the Roman Empire, and in the fourth century, became the capital of the Christian world. Ancient Rome was followed, from the 4th century on, by Christian Rome.

Explanation:

two months after his defeat of napoleon bonaparte's colonial forces, jean-jacques dessalines proclaims the independence of saint-domingue, renaming it haiti after its original arawak name. in 1791, a slave revolt erupted on the french colony, and toussaint-louverture, a former slave, took control of the rebels.

the picture is not clear

explanation: