{"id":619936,"date":"2026-01-18T20:01:43","date_gmt":"2026-01-18T19:01:43","guid":{"rendered":"https:\/\/cronologia-universale.it\/april-1-1814\/"},"modified":"2026-01-18T20:01:43","modified_gmt":"2026-01-18T19:01:43","slug":"1808","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/1808\/","title":{"rendered":"1808"},"content":{"rendered":"<p>Humphry Davy, after discovering potassium and sodium in 1801, announced the discovery of calcium, magnesium, strontium, and barium, discovered by electrolyzing lime and magnesia, with mercury electrodes to capture the metals as soon as they were released, before they could burn.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Humphry Davy, after discovering potassium and sodium in 1801, announced the discovery of calcium, magnesium,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[41],"tags":[],"class_list":["post-619936","post","type-post","status-publish","format-standard","hentry","category-s-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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