is located 525 kilometres (326 miles) from Tehran in the western part of Iran. According to the 2011 census, its population is 851,405. People mostly speak Southern Kurdish. Kermanshah has a moderate and mountainous climate. Kermanshah is largest Kurdish speaking city in Iran.
Because of its antiquity, attractive landscapes, rich culture and Neolithic villages, Kermanshah is considered one of the cradles of prehistoric cultures. According to archaeological surveys and excavation, the Kermanshah area has been occupied by prehistoric people since the Lower Paleolithic period, and continued to later Paleolithicperiods till late Pleistocene period. The Lower Paleolithic evidence consists of some handaxes found in the Gakia area to the east of the city.