Keywords: Bulgarians in 1912.jpg Das Bulgarentum auf der Balkanhalbinsel im Jahre 1912 Stieler Handatlas 1915 A Irschikoff PD-old Maps showing history in German Historical maps of ethnic groups in Bulgaria Historical maps of ethnic groups in Greece Historical maps of ethnic groups in the Republic of Macedonia Historical maps of ethnic groups in Romania Historical maps of ethnic groups in Serbia Historical maps of ethnic groups in Turkey Historical maps of ethnic groups in Albania Maps showing 20th-century history Old maps of the Balkans Old maps of Romania Historical maps of ethnic groups in the Balkans Anastas Ishirkov Lyubomir Miletich Stoyan Romanski Benyo Tsonev Yordan Ivanov |