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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

1944: Gen MacArthur Attacked Hollandia, New Guinea

Wednesday, April 22, 2026

22 April 1944: Gen. MacArthur, based on COMINT reports, attacked Hollandia, New Guinea, deep behind enemy lines.

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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.