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| VII. The Contemporary Period, 1945–2000 > C. North America, 1946–2000 > 1. The United States, 1946–2000 > 1954, Jan. 12 > Dec. 20 | ||||
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| CONTENTS · SUBJECT INDEX · BIBLIOGRAPHIC RECORD |
| The Encyclopedia of World History. 2001. |
| Dec. 20 | |
| Defense Secretary Charles E. Wilson announced an accelerated reduction of military manpower, cutting the armed forces from 3,218,000 men to 2,815,000 men over a period of 18 months. | 1 |
| Dr. Jonas Salk perfected the polio vaccine and thereby increased the health of children. | 2 |
| 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. | |
| CONTENTS · SUBJECT INDEX · BIBLIOGRAPHIC RECORD | ||||
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