{"id":623336,"date":"2026-01-18T21:55:57","date_gmt":"2026-01-18T20:55:57","guid":{"rendered":"https:\/\/cronologia-universale.it\/may-10-1940-2\/"},"modified":"2026-01-18T21:55:57","modified_gmt":"2026-01-18T20:55:57","slug":"1933-5","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/1933-5\/","title":{"rendered":"1933"},"content":{"rendered":"<p>Alexander Dahl, with his hydrogen balloon, was the first to rise high enough above the ground (11,300 m) to photograph the curvature of the Earth. In 1935, it was surpassed by the American manned probe Explorer 2 (22 km) and then by the V2 rockets in 1947 from New Mexico (110 km).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Alexander Dahl, with his hydrogen balloon, was the first to rise high enough above the&#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-623336","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>1933 - 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\/1933-5\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1933 - 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