Close
Menu

Cryptologic Bytes

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

1881: First telephone ciphony device invented by James Harris Rodgers.

Wednesday, December 20, 2023

20 Dec 1881: First telephone ciphony device invented by James Harris Rodgers, chief electrician of the U.S. Capitol.

Return to Calendar

VISIT THE ARCHIVES

Check out the Cryptologic Bytes Archives for a wide variety of articles on all topics related to cryptology, codes and ciphers, related publications, Museums, and more.