Most other data we currently have on the Kidarite kingdom are from Chinese and Byzantine sources from the middle of the 5th century. The Kidarites were the first Huna to bother India. Indian records note that the "Hūna" had established themselves in modern Afghanistan and the North-West Frontier Province by the first half of the 5th century, and the Gupta emperor Skandagupta had repelled a "Hūna" invasion in 455. The Kidarites are the last dynasty to regard themselves (on the legend of their coins) as the inheritors of the Kushan empire, which had disappeared as an independent entity two centuries earlier.