Who founded crescent city?

There were many reasons for the fall of the Roman Empire but the physical reason was the invasions by several barbarian tribes from the North What were the names of these tribes? Is byzantium and Istanbul the same city? Are Celtic good? Who organized the first Crusades? What date did Rome first occupy Jerusalem? Past tense of grind? What were the three major industries involved in the development of the west and how did these industries transformed the western economy? Early Greek civilization were peace-loving and used the sea in many aspects of their culture? What would roman mean and women wear? Which city manipulated the Fourth Crusade? What was manorilism? What is an interdisciplinary approach in studying history? Which author was the most widely cited authority on monstrous peoples during the 16th century? In what area where there advancements in the Middle Ages? What is a verbirate? Why were the crusades happening? When did Kublai Khan establish the Yuan Dynasty? How did western rancher and farmers get their peoducts to eastern markets? What century is the year 1275? Why did the west African slave traders get their slaves to sell to europeans?