The Byzantine Empire Rises

Which word was made by historians to refer to the "East Roman Empire that survived after Rome's fall"?

This is a "narrow body of water" that connects two larger bodies.

This is a trench around a structure filled with water to protect it from invaders.

This chemical mixture can burn ships even on water.

This is someone who converts persons to a certain religion.

This alphabet is used in the Slavic languages like Russian and Bulgarian.

This is the person who is next in line to an office or position.

This word means "most important" or the "center."

Which strait was the "New Rome" established by the Byzantine Empire?

What language did the "New Rome" of the Byzantine empire spoke?