{"id":620889,"date":"2026-01-18T20:34:05","date_gmt":"2026-01-18T19:34:05","guid":{"rendered":"https:\/\/cronologia-universale.it\/1861-4\/"},"modified":"2026-01-18T20:34:05","modified_gmt":"2026-01-18T19:34:05","slug":"february-24-1856","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/february-24-1856\/","title":{"rendered":"February 24, 1856"},"content":{"rendered":"<p>Nicolai Ivanovich Lobachevsky died poor, blind, and heartbroken. Financial difficulties, health problems, progressive blindness, and the death of his first son marred his final years. His mathematical work was not adequately recognized during his lifetime.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nicolai Ivanovich Lobachevsky died poor, blind, and heartbroken. Financial difficulties, health problems, progressive blindness, and&#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-620889","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>February 24, 1856 - 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\/february-24-1856\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"February 24, 1856 - Cronologia Universale\" \/>\n<meta property=\"og:description\" content=\"Nicolai Ivanovich Lobachevsky died poor, blind, and heartbroken. 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