What does C1600 mean?

What are the similarities and differences among the world's earliest civilization? Why did christians fight the Muslim Turks? Where does cowboys expression Ye ha come from? How many years is it between 1992 to 2011? What is the historical development of commerce? What factors make civilizations rise and fall? The Treaty of Nanking was the first of the unequal treaties that were signed between China and the Western powers? Which creation theory claims that God created things in stages over an extended period? What does the Roman portrait sculpture The Four Tetrarchs represent? Who thought of the name piggly wiggly? What was the century in 900? France's per capita income? Who were the main rivals of the Romans during the time of the republic? When did Roman crucifixion stop? What ideas and inventions encouraged europeans to begin overseas exporation? What was the only successful Crusade for the Christians? What is the name for the modern era? Who was more benefited from the culumbial exchange? Kiev became known as the mother of Russian cities because of its? When was Velvet Empire created?