There were precedents to this proposal of population transfer: Muslim Bulgarians were resettled in Turkey, and in exchange many Turks were transferred to Bulgaria in pursuance of the Turko-Bulgarian Convention of 1913—about two and a half million people were thus resettled.{PG3} Another Muslim-Christian exchange of population case was that under the Treaty of Lausanne signed on 30 January 1923 between Turkey and Greece involving about 1.6 million people.{URL74}
