| The Encyclopedia of World History. 2001. |
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| 1917 |
| April 20, 26 |
| | | The Germans raided the English coast. | 1 |
| | | Oct. 17, Dec. 12 |
| | | The Germans attacked British convoys in the North Sea. | 2 |
| | | Nov. 17 |
| | | A British light cruiser attack off Heligoland was beaten back. | 3 |
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| 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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