#  Scytale: A Historical Analysis of Cryptography, Military Intelligence, and Military Science: Ancient Secrets, Messages, and Sensitivity 

 



    ![Ch'ŏnhado. [Korea]: [publisher not identified], 1630. (World map, Harvard Libraries)](/sites/g/files/omnuum11031/files/styles/hwp_5_4__480x385/public/2026-01/Screenshot%202026-01-31%20at%204.11.39%E2%80%AFPM.png?itok=V1tLnh4p) 

 



 

####  calendar\_today Date and Time 

 **October 22, 2026** 

 12:00PM - 01:15PM EDT 

####  pin\_drop Location 

 **Science Center 252, Harvard University, 1 Oxford St, Cambridge MA**  



 

 



 

Sponsor: Harvard Early Sciences Working Group

Speaker: **Xiao Di "Janice" Tong** (H-Net Reviews Editor)



 

 



 

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