Friedrich Wohler (1800-1882) German organic chemist. Isolated aluminium (1827), synthesised urea (1828), discovered beryllium (1828), and obtained acetylene from calcium carbide. Engraving from "Les Merveilles de la Science" by Louis Figuier (Paris, c1870). (Photo by: Universal History Archive/UIG via Getty Images)
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Album / Universal Images Group / Universal History Images \ UIG