| The Encyclopedia of World History. 2001. |
| 1921 | |
| Sheik Ahmad became ruler of Kuwait and reigned until 1950. | 1 |
| Creation of the Muscat Levy Force, a small military unit that served as the police force for the Sultanate of Oman. | 2 |
| Nov | |
| Saudi conquest of Hail. | 3 |
| The Encyclopedia of World History, Sixth edition. Peter N. Stearns, general editor. Copyright © 2001 by Houghton Mifflin Company. Maps by Mary Reilly, copyright © 2001 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. | |
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