The Byzantine Empire is a state that developed from the eastern part of the Roman Empire.

The history of the Byzantine Empire is very interesting.

My house is located in the eastern part.

The history of the Roman Empire is very interesting.

This area has been rapidly developing in recent years.

This area has been developing rapidly in recent years.

My nation is Japan.

He is studying the history of the Roman Empire.

New York follows Eastern Standard Time.

The Eastern Roman Empire continued to exist even after the fall of the Western Roman Empire.