 Unrest, called the Second Fitna continued, but Muslim rule was extended under Muawiyah to Rhodes, Crete, Kabul, Bukhara, and Samarkand, and expanded in North Africa.In 664, Arab armies conquered Kabul, and in 665 pushed into the Maghreb.The Umayyad dynasty (or "Ommiads"), whose name derives from Umayya ibn Abd Shams, the great-grandfather of the first Umayyad caliph, ruled from 661 to 750.