It remains unknown when the name "Kabul" was first applied to the city. However, it "came into prominence" following the destruction of Kapisa and other cities in what is present-day Afghanistan by Genghis Khan (c. 1162–1227) in the thirteenth century. Due to the centrality of the city within the region, as well as its cultural importance as a nexus of ethnic groups in the region, Kabul became known as the Paris of Central Asia in the late 20th century.