<span>The decimal system is from </span>the Gupta Empire.
No, Suleyman the Magnificent ruled 1520-1566 and Selim the Grim ruled 1512-1520, but both were Sultans of the Ottoman Empire.
Constantinople was the largest and richest urban center in the Eastern Mediterranean Sea during the late Eastern Roman Empire, mostly as a result of its strategic position commanding the trade routes between the Aegean Sea and the Black Sea.
Answer:
The First Battle of Bull Run (also known as the First Manassas) was fought on July 21, 1861. It was the first major battle of the Civil War and resulted in a Confederate victory.