Ghazni is a city in central Afghanistan, with an approximate population of 141,000 people (2010). It is the capital of Ghazni Province, situated on a plateau at 7,280 feet (2,219 m) above sea level. Ghazni was founded sometime in antiquity as a small market-town and is mentioned by Ptolemy. According to various legends it was founded by Raja Gaj of the Yadu Dynasty around 1500 BCE. In the 6th century BCE, the city was conquered by the Achaemenid king, Cyrus II, and incorporated into the Persian empire. Ghazni was a thriving Buddhist center up until the 7th century. In 683 CE, Arab armies brought Islam to the region but many refused to accept the new religion. Yaqub Saffari from Zaranj conquered the city in the late 9th century. It later became the dazzling capital of the Ghaznavid Empire, which encompassed much of northern India, Persia and Central Asia. Between 1215-21, Ghazni was managed by the Khwarezmid Empire, during which time it was destroyed by the Mongol armies of Genghis Khan, led by his son ?愺gedei Khan.