The oldest historical buildings in Maku date back to the Urartu or Khalid period. Stone rooms in the villages of Sangar (Maku-Bazargan) Chirkandi in Chay Basar and Delik Dash in Siyah Cheshmeh and Sheddi in Aras near Poldasht, and the discovery of cuneiform inscriptions in Bastam village and around Bazargan and the excavations and discoveries of the German delegation in Qara Bastam and the deciphering cuneiform inscriptions by Iranian and foreign archaeologists and the writings of ancient and modern historians such as Musa Khoren (Armenian) and B.B. Pyotrovsky (Russian) prove that the original inhabitants of Maku were the Urartians. Rosa, their biggest city, was built near the village of Bastam.