Kandahar is the second largest city in Afghanistan. Alexander the Great visited the town and named it after himself. Alexander the Great founded Kandahar in the 4th century BC. He called it "Alexandria Arachosia". About 500,000 people live there in 2015. It is in the central-south of Afghanistan. Kandahar is the capital of Kandahar Province. It is an important trading centre for sheep, wool, cotton, silk, felt, food grains, fresh and dried fruit, and tobacco. Kandahar has an international airport.