There were many factors that allowed the Byzantine Empire to last a 1000 years after the end of the Roman Empire which include the fact that Constantinople, the capital of the Byzantine Empire, was protected with walls that lasted almost the entire 1000 years, making Constantinople, and the center of the empire's economy/culture impervious to invaders.
Answer: The Battle of Jumonville Glen
Explanation: Historians generally consider the Battle of Jumonville Glen as the opening battle of the French and Indian War in North America, and the start of hostilities in the Ohio valley.
Ok, so obviously, you can tell that A. is not even an answer since his name is Prince Henry which is an English name and the Islamic empire never really reached what is now present-day U.K...B. and D. are wrong because Catholicism was in Spain and the Pope was also in Spain. So your only correct answer is C.
The Doctrine that eased Cold War tensions was the Nixon doctrine
