Three thousand years before Christ, white stone, bitumen, and other types of stones were used to make Persian art tools. Dark blue and charcoal-colored pottery became popular.
Metal weapons were used in different regions of Iran, such as Susa and Nahavand, and various ornaments were made of gold, agate, and lapis lazuli.
Two thousand years before Christ, the arrival of the Aryans to the Iranian plateau was the most important event, at that time the art of metal reached its peak of importance, the production of thin pottery spread in Alborz and its neighbors, and luxurious buildings with brick or brick walls were built.
Baked pottery was decorated with paintings with designs of humans and constellations, trees, and other figures. The developed urbanization and stone carvings reached a stage that gave beauty to Susa. At this time, tribes such as Aryans, Medes, and Persians settled in Zagros.