Smithson Tennant had announced the discovery of…

June 1804 CE

Smithson Tennant had announced the discovery of the elements iridium and osmium on June 21, 1804; three days later, William Hyde Wollaston reveals to the Royal Society that he is the formerly anonymous discoverer of palladium.

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London Middlesex United Kingdom View →

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Smithson Tennant View → William Hyde Wollaston View →

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Britain (United Kingdom of Great Britain and Ireland) View →

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Chemistry View →

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