{"id":623780,"date":"2026-01-18T22:10:58","date_gmt":"2026-01-18T21:10:58","guid":{"rendered":"https:\/\/cronologia-universale.it\/april-1943-5\/"},"modified":"2026-01-18T22:10:58","modified_gmt":"2026-01-18T21:10:58","slug":"1941-3","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/1941-3\/","title":{"rendered":"1941"},"content":{"rendered":"<p>The United States produced only 8,000 tons of synthetic rubber, but production grew rapidly, reaching 800,000 tons annually by 1945. This undertaking would be described as the second-largest American engineering feat of the war, after the Manhattan Project. The feat was made possible by the German company IG Farben&#8217;s sale of the patent to the American company Standard Oil several years earlier (just before the outbreak of World War II), in the mistaken belief that the technical details were insufficient to develop industrial-scale production.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The United States produced only 8,000 tons of synthetic rubber, but production grew rapidly, reaching&#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":[34],"tags":[],"class_list":["post-623780","post","type-post","status-publish","format-standard","hentry","category-e-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>1941 - 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\/1941-3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1941 - 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