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Photograph: Theodore Roosevelt in Nahuel Huapi National Park, 1913
A photograph of Theodore Roosevelt visiting the Nahuel Huapi National Park in Argentina, 1913.
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Photograph: Anti-nuclear protest, Wyhl, Germany, 1975
An unexpected group of activists, consisting of mostly farmers and vintners, occupied the construction site of a nuclear reactor near the German town of Wyhl in 1975.
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Photograph: Suna River, 1915
An early color photograph of the Suna River by Sergey Prokudin-Gorsky (1863–1944), who is also featured in the picture.
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Machine Tools
The principle of the division of labour and the use of machines appeared in the 18th century in England. These developments initiated the Industrial Revolution.
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The Steam Engine
Steam power became the energy source for many machines and vehicles, making it cheaper and easier to produce commodities in large amounts.