The Zimmermann Telegram
On January 16, 1917, the Imperial German foreign minister, Arthur Zimmermann, sent a coded telegram to the German ambassador in Washington, D.C., Count Johann von Bernstorff, to be forwarded to the German minister in Mexico City, Heinrich von Eckhardt. Unknown to the Germans, the British had intercepted the telegram at their cryptanalytic center, known as Room 40, and were already decoding it.
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The Zimmermann Telegram
Welcome
What Is Cryptology?
NSA Seal Mosaic
Secrets of the Ancients
Museum Library
Service and Sacrifice
Loss of the U.S.S. Pueblo
Attack on the Liberty
African American Experience
Rare Book Collection
Early Cryptography Cipher Devices
Revolutionary War
Civil War
WORLD WAR I
Meet the Friedmans
Enigma
U.S. Navy Bombe
The Magic of PURPLE
Battle of Midway
Hebern
Colossus and Other Early Cryptologic Machines
More About Colossus
Native American Code Talkers
Cold War and Vietnam
Supercomputers
Gallery III - Protecting America's Secrets
National Command and Control
Protecting Communications in Space
Cyber Drive
Search Collection
Activities: Older Kids / Adults
National Cryptologic Museum
The Zimmermann Telegram
- Welcome
- What Is Cryptology?
- NSA Seal Mosaic
- Secrets of the Ancients
- Museum Library
- Service and Sacrifice
- Loss of the U.S.S. Pueblo
- Attack on the Liberty
- African American Experience
- Rare Book Collection
- Early Cryptography Cipher Devices
- Revolutionary War
- Civil War
- WORLD WAR I
- Meet the Friedmans
- Enigma
- U.S. Navy Bombe
- The Magic of PURPLE
- Battle of Midway
- Hebern
- Colossus and Other Early Cryptologic Machines
- More About Colossus
- Native American Code Talkers
- Cold War and Vietnam
- Supercomputers
- Gallery III - Protecting America's Secrets
- National Command and Control
- Protecting Communications in Space
- Cyber Drive
- Search Collection
- Activities: Older Kids / Adults
