Answer: The adjective "medieval" (or sometimes "mediaeval" or "mediæval"), meaning pertaining to the Middle Ages, derives from medium aevum. Medieval writers divided history into periods such as the "Six Ages" or the "Four Empires", and considered their time to be the last before the end of the world.
Explanation:
The answer will be as a oligarchy
b. Northwest
The Northwest Passage was a presumed pathway through which sailors could easily sail through the Americas to reach the Pacific Ocean and India. However, it did not exist and sailors were forced to travel around the southern tip of South America until the construction of the Panama Canal in the early 1900s.
Hope this helps!!
He did that because rome started to fall and was taking pressure by north countries.Byzantium was the best solution because of it's geographic location and it could control the trade