Trabzon is the largest port of Black Sea. It also known as Trebizond or Trapezus. Trabzon's history goes back to the 8th century BC, Milesian emporia. During the World War I it was captured by Russians but it has been taken back to the hands of Turkey by Treaty of Lausanne. In the Byzantine period caravans from Persia were passing through the Trabzon to sell their goods to Europe. Trabzon is still a busy trading centre.