* Capital: Constantinople
* Official language: Greek
* Religion: Eastern Orthodox Christianity
* Territory: Balkans, Anatolia, Egypt, Syria, Palestine, Armenia, North Africa, Italy, and parts of Spain
* Government: Autocracy
* Economy: Trade, agriculture, and manufacturing
* Culture: Greek, Roman, and Christian
* Legacy: The Byzantine Empire lasted for over 1,000 years and was one of the most powerful empires in history. It helped to preserve Greek and Roman culture and learning, and it spread Christianity throughout much of the world.
Western Roman Empire
* Capital: Rome
* Official language: Latin
* Religion: Western Christianity
* Territory: Western Europe, North Africa, and Britain
* Government: Autocracy
* Economy: Trade, agriculture, and manufacturing
* Culture: Roman, German, and Celtic
* Legacy: The Western Roman Empire fell in 476 AD, but its legacy continued in the Holy Roman Empire and other Western European states.
Differences between the Eastern and Western Roman Empires
The Eastern and Western Roman Empires were similar in many ways, but there were also some key differences.
* Religion: The Eastern Roman Empire was primarily Eastern Orthodox Christian, while the Western Roman Empire was primarily Western Christian.
* Language: The Eastern Roman Empire's official language was Greek, while the Western Roman Empire's official language was Latin.
* Territory: The Eastern Roman Empire was larger than the Western Roman Empire, and it included more diverse populations.
* Government: The Eastern Roman Empire was more centralized than the Western Roman Empire, and it had a stronger bureaucracy.
* Economy: The Eastern Roman Empire was more prosperous than the Western Roman Empire, and it had a more diverse economy.
* Culture: The Eastern Roman Empire was more heavily influenced by Greek and Roman culture, while the Western Roman Empire was more heavily influenced by Germanic and Celtic culture.