 After 1946, he discovered the late Hittite ruins in Karatepe in southern Turkey along with the Turkish archaeologists Bahadır Alkım and Halet Çambel.The Karatepe Bilingual found there eventually led to the decryption of Hittite hieroglyphics -according to current understanding Luwian hieroglyphs or Anatolian hieroglyphs.In 1947, he acquired the Turkish citizenship, and remarried to Turkish woman Hürmüz.