The region of Afghanistan has for much of history been part of the Persian empire. From time to time it has been linked with the northern plains of India, as under the Kushan dynasty of the 2nd century AD. Very occasionally, as in the time of Mahmud of Ghazni, it has existed as a kingdom approximating more closely to the modern borders of Aghanistan.Read more: http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ad09#ixzz0OsPPdDQRRead more: http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ad09#ixzz0OsPPdDQR