The Great Chain, Trophy Point, West Point, New York, USA, 1901. Artist: Underwood & Underwood
The Great Chain, Trophy Point, West Point, New York, USA, 1901. The Great Chain was used to prevent British naval vessels from passing up the Hudson River during the American Revolutionary War
Lazare Carnot, French politician, engineer, and mathematician, 1898. Artist: Gilbert
Lazare Carnot, French politician, engineer, and mathematician, 1898. A print from Les Francais Illustres, by Gustave Demoulin, Hachette, Paris, 1898