The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Muslim caliph (656-661) whose reign was marked by the division of Islam into Sunni and Shiite sects. This schism intensified after his assassination by members of a third Muslim sect. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.