Changes for the Roman Empire
History

The ancient city of Byzantium which became the capital of the Roman Empire by Constantine
Constantinople
The ancient city of Byzantium which became the capital of the Roman Empire by Constantine. Constantinople. Constantinople is the historic city that served as the capital of the Roman and Byzantine Empires, now known as Istanbul.

A Roman emperor known for ending the period known as the Crisis of the Third Century
Diocletian
A Roman emperor known for ending the period known as the Crisis of the Third Century. Diocletian. Diocletian was the Roman emperor who stabilized and reformed the Roman Empire after a time of political chaos and economic problems.

A country in Western Asia which was home to one of the world's oldest civilizations
Persia
A country in Western Asia which was home to one of the world's oldest civilizations. Persia. Persia, known today as Iran, was an ancient empire renowned for its rich cultural heritage and influential role in history.

An Eastern Roman empress by marriage to Justinian and a saint in the Orthodox Church
Theodora
An Eastern Roman empress by marriage to Justinian and a saint in the Orthodox Church. Theodora. Theodora was a powerful Byzantine empress who played a significant role in shaping the empire's policies and is recognized for her intelligence and influence.