👤 PersonJoseph Priestley1733–1804 · United KingdomWikipediaWikipedia (es)Wikidata🌍 View on the globeInventions and discoveries · 31774Dephlogisticated air (oxygen gas) discoveredDiscovery · discoverer1774OxygenDiscovery · discoverer1771-1779Photosynthesis (Priestley, Ingenhousz)Discovery · discoverer