 Complete the following phrase:  In the century after the death of Osman I, Ottoman rule began to extend over the Eastern Mediterranean and the Balkans. Osmans son, Orhan, captured the city of Bursa in 1326 and made it the new capital of the Ottoman state. The fall of Bursa meant the loss of Byzantine control over Northwestern Anatolia. The important city of Thessaloniki was captured from the Venetians in 1387. The Ottoman victory at Kosovo in 1389 effectively marked 