How many years have passed since end of the Trojan War?

The Arab-Islamic Abbasid Dynasty set up the first Shiite rule of Iraq? What was a Romans walled garden called? What other notable achievements must European society have reached even to make this exchange of letters possible? What happened in most eastern European countries with the end of the cold war? What century is 902 ad? Is civilization a concrete or abstract noun? How did the office of dictador contribute to the balance and stability of the roman republic? What day of the week was January 19th 1947? How did Romans save food? The religious order started in the middle ages do they still exist today? Were sporting activities important in the middle ages? Gold became accepted as the universal exchange? Why did feudalism develop in western Europe? How do the people of Europe overcome the barriers created by the diversity of culture? What are facts about the Vianden castle? What technological advances made exploration possible in the late 1400s? What is the origin of the name Kathryn? The Chinese premier who made the first overtures toward establishing a more open relationship with the West was? What was the role of the Roman Assembly? Which nation began to shape world culture in the 20th century?