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Red chalk sketches of microscopic sand grains. Presented to the Royal Society of England via letter correspondence. Courtesy of the Royal Society, England.
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Diagram of the steam engine by inventor James Watt. Watt patented the design in 1769. This improvement on a primitive engine was instrumental in ushering in the Industrial Revolution in Europe.
Image courtesy of the National Museum of Scotland. -
This drawing, done by Isidore-Stanislas Helman (1743-1806) depicts the execution of Louis XVI on January 21, 1793. Notably, the king is being put to death via guillotine, a major invention and emblem of the French Revolution.
Image courtesy of the French National Library. -
This image is the cover to English anthropologist Edward Tylor's prolific work of the same name.
Image courtesy of the French National Library. -
This etching by German artist Otto Dix depicts soldiers of the First World War. Importantly, they are donning gas masks, an invention of the Great War.
Image courtesy of the Museum of Modern Art. -
This photo was taken by the British Ministry of Information during the German-fronted "Blitz" bombing campaign on London during the Second World War.
Image courtesy of the Imperial War Museum