After Azerbaijan was divided between Russia and Iran on the basis of the “Gulistan” (1813) and Turkmenchay (1828) treaties, 600,000 Armenians immigrated from Iran and Turkey to the territory of the South Caucasus, mainly to present-day Armenia and Azerbaijan, until 1920.
Demography
ETHNIC AND POLITICAL HISTORY OF NAKHCHIVAN: ARMENIAN FIGMENTS AND HISTORICAL REALITIES
Suitable natural geographical features of Nakhchivan created an opportunity for the humans to inhabit here since Stone Age. Material culture samples of Stone Age found in Sabir-Diza (Ordubad region), Shahtakhti (Kangarli region) and Ovchulartapasi (Sharur region) settlements during archeological researches prove the fact that old humans had settled in Nakhchivan million years ago. Excavations in Gazma cave show that life in Nakhchivan still existed in the middle and last phases of Paleolithic period. The study of the signs characteristic for upper Paleolithic period prove that ancient Gazma inhabitants were on the eve of tribal society formation.