Cryptologic History

"On This Date in Cryptologic History" Calendar

1953: "Direct" SIGINT support to tactical air control center began on Cho Do Island.

Sunday, March 8, 2026

8 March 1953: "Direct" SIGINT support to tactical air control center began on Cho Do Island during the Korean War. Visit the link below for an NSA publication about SIGINT and the Korean War.

Learn About the Pioneers

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