published on: 2016-07-25 06:38:15
oldworldinventions: 1913: Copy machine
oldworldinventions: 1504: Oldest map of the new world (carved
magictransistor: The Montgolfier brothers in their hot-air balloon
oldworldinventions: 1956: Design for the telephone of the future
dinosaurspen: Cryptographers Dorothy Du Boisson & Elsie
inventhelp: 5 Things You Didn’t Know Thomas Jefferson Invented.