{"id":619837,"date":"2026-01-18T19:58:18","date_gmt":"2026-01-18T18:58:18","guid":{"rendered":"https:\/\/cronologia-universale.it\/december-18-1812\/"},"modified":"2026-01-18T19:58:18","modified_gmt":"2026-01-18T18:58:18","slug":"december-24-1800","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/december-24-1800\/","title":{"rendered":"December 24, 1800"},"content":{"rendered":"<p>Wollaston and Tennant, sons of two Anglican ministers, medical graduates and passionate about natural philosophy, purchased 170 kg of platinum from the Americas. Wollaston dissolved the material in white spirit and then reacted it with ammonium salts. After several further steps, they obtained several pure elements, including iridium and osmium, and finally palladium, immediately dubbed &#8220;New Silver, a new Noble Metal.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wollaston and Tennant, sons of two Anglican ministers, medical graduates and passionate about natural philosophy,&#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":[43],"tags":[],"class_list":["post-619837","post","type-post","status-publish","format-standard","hentry","category-vg-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>December 24, 1800 - Cronologia Universale<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cronologia-universale.it\/en\/december-24-1800\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"December 24, 1800 - 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