Original sentence: A Mongolian ambassador to the Caliph in Baghdad is said to have been murdered, which may have been the cause of Hulagu Khan's sack of Baghdad in 1258.In 1206, Genghis Khan from Central Asia established a powerful Mongol Empire
Edited sentence: In 1206, Genghis Khan established a powerful dynasty among the Mongols of central Asia.The murder of a Mongolian ambassador to the Caliph in Baghdad  resulted in Hulagu Khan's sack of Baghdad in 1258