Cryptologic History

"On This Date in Cryptologic History" Calendar

1945: United Nations came into existence.

Friday, October 24, 2025

The United Nations officially came into existence #OTD in 1945 when the charter had been ratified by a majority of signatories. Pictured here is the U.S. Ambassador to the United Nations Adlai E. Stevenson II using the KY-3 secure voice encryption system in his U.N. office.

Learn more about secure phones via the link below.

Learn About the Pioneers

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