Video: Season 3
Gwen tells us more about the development of technology in Nazi Germany.
Explore More Video: Web Exclusives
- Wes Cowan Interview Wes talks about being a History Detective.
- Civil War Photography Get background on the development of photography during the Civil War.
- Behind the Scenes - Series Three Go behind the scenes into History Detectives HQ.
- History of Writing Gwen tells us about the history of the written word.
- New York Public Library Find out more about the New York Public Library.
- Freedom of Information Act Find out more about the Freedom of Information Act.