The Byzantines lost so much land, money and soldiers that they became very weak and begged for help from the Europeans. Some soldiers and ships came from Italy and the Pope to assist the Byzantines when the Turks attacked Constantinople in April 1453. They were very outnumbered though, and the walls of Constantinople were badly damaged by cannons used by the Turks. At the end of May 1453, the Turks captured Constantinople by entering through one of the gates along the walls and the Empire came to an end. The city was plundered for three days. At the end, the population which had not been able to escape, was deported to Edirne, Bursa and other Ottoman cities, leaving the city deserted except for the Jews of Balat and the Genoese of Pera. After that, Constantinople became Istanbul, the capital of the Ottoman Empire, which it would be until the 1900s, when the capital was moved to Ankara, a city in the Asian part of Turkey.