{"id":621434,"date":"2026-01-18T20:52:27","date_gmt":"2026-01-18T19:52:27","guid":{"rendered":"https:\/\/cronologia-universale.it\/december-28-1879\/"},"modified":"2026-01-18T20:52:27","modified_gmt":"2026-01-18T19:52:27","slug":"1866-11","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/1866-11\/","title":{"rendered":"1866"},"content":{"rendered":"<p>Nicolo&#8217; Paganini discovered the pair of amicable numbers 1184 and 1210 (that is, numbers for which the sum of the divisors of one equals the other and vice versa). Years earlier, Descartes discovered the pair 9363584 and 9437056, while Euler listed 62 pairs of amicable numbers.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nicolo&#8217; Paganini discovered the pair of amicable numbers 1184 and 1210 (that is, numbers for&#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":[35],"tags":[],"class_list":["post-621434","post","type-post","status-publish","format-standard","hentry","category-ev-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>1866 - 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\/1866-11\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1866 - Cronologia Universale\" \/>\n<meta property=\"og:description\" content=\"Nicolo&#8217; 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