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Cryptologic History

Every little bit helps the NCF to influence the cryptologic future by sharing our educational resources, stimulating new knowledge, and commemorating our heritage.

"On This Date in Cryptologic History" Calendar

1951: State Department established liaison unit at Arlington Hall.

Tuesday, July 15, 2025

15 July 1951: The U.S. State Department established a liaison unit at Arlington Hall.

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Learn About the Pioneers

Learn about the various individuals and groups who paved the way in the field of cryptology, cyber, computers, and more.