{"page":"<link rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" />\n<link rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" />\n<div data-title='Solving an Ancient Tablet&#39;s Mathematical Mystery | National Geographic' data-url='/boclips/videos/5c5dc4c789cabc00016dd878' data-video-url='/boclips/videos/5c5dc4c789cabc00016dd878' id='bo_player_modal'>\n<div class='boclips-resource-page modal-dialog panel-container'>\n<div class='react-notifications-root'></div>\n<div class='rp-header'>\n<div class='rp-type'>\n<i aria-hidden='true' class='fai fa-regular fa-circle-play'></i>\nVideo\n</div>\n<h1 class='rp-title' id='video-title'>\nSolving an Ancient Tablet&#39;s Mathematical Mystery | National Geographic\n</h1>\n<div class='rp-actions'>\n<div class='mr-1'>\n<a class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"><span><span>Get Free Access</span><span class=\"\"> for 10 Days</span><span>!</span></span></a>\n</div>\n</div>\n</div>\n<div class='rp-body'>\n<div class='rp-info'>\n<div aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'>&times;</div>\n<i aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'></i>\n<i aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'></i>\n<div class='rp-rating'>\n<span class='resource-pool'>\n<span class='pool-label'>Publisher:</span>\n<span class='pool-name'>\n<span class='text'><a data-publisher-id=\"418346\" href=\"/search?publisher_ids%5B%5D=418346\">National Geographic</a></span>\n</span>\n</span>\n</div>\n<div class='rp-description'>\n<span class='short-description'>A new interpretation of an ancient tablet may show that the Babylonians had mastered trigonometry, pushing back the foundation of that subject more than a millennium. ➡ Subscribe About National Geographic: National Geographic is the...</span>\n<span class='full-description hide'>A new interpretation of an ancient tablet may show that the Babylonians had mastered trigonometry, pushing back the foundation of that subject more than a millennium. ➡ <a href='http://bit.ly/NatGeoSubscribe' target='_blank' rel='nofollow'>Subscribe</a> About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official <a href='http://bit.ly/NatGeoOfficialSite' target='_blank' rel='nofollow'>Site</a> <a href='http://bit.ly/FBNatGeo' target='_blank' rel='nofollow'>Facebook</a> <a href='http://bit.ly/NatGeoTwitter' target='_blank' rel='nofollow'>Twitter</a> <a href='http://bit.ly/NatGeoInsta' target='_blank' rel='nofollow'>Instagram</a> An ancient tablet may have just given researchers new insight into the minds of the ancient Babylonians, long known to be expert civil engineers. The clay text may demonstrate that this civilization built its monuments and canals with a higher degree of mathematical understanding than historians had thought. Discovered sometime about a century ago, scholars of ancient mathematics have been studying it for decades. New findings by Daniel Mansfield and Norman Wildberger of the University of New South Wales, Sydney reveal that the text may have been a complete table of trigonometry. If that’s true, it would be by far the oldest ever discovered. Until now, a Greek trig table from about 120 B.C. was considered the first. Plimpton 322 predates that by more than a thousand years. READ: Ancient Tablet May Show Earliest Use of This Advanced <a href='http://news.nationalgeographic.com/2017/08/ancient-babylonian-trigonometry-tablet-plimpton-322-video-spd/' target='_blank' rel='nofollow'>Math</a> Solving an Ancient Tablet's Mathematical Mystery | National <a href='https://youtu.be/-sajLDiqIZE' target='_blank' rel='nofollow'>Geographic</a> National <a href='https://www.youtube.com/natgeo' target='_blank' rel='nofollow'>Geographic</a></span>\n</div>\n<div class='action-container flex justify-between'>\n<button aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'>\n<i class='fai fa-solid fa-align-left'></i>\n<span id='read_more'>Read More</span>\n</button>\n<div class='rp-report'>\n</div>\n</div>\n<div aria-labelledby='resource-details-heading' class='rp-info-section'>\n<h2 class='title' id='resource-details-heading'>Resource Details</h2>\n<div class='rp-resource-details clearfix'>\n<div class='detail'>\n<dl>\n<dt>Curator Rating</dt>\n<dd><span class=\"star-rating\" aria-label=\"5.0 out of 5 stars\" role=\"img\"><i class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"></i><i class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"></i><i class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"></i><i class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"></i><i class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"></i></span></dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<dt class=\"educator-rating-title\">Educator Rating</dt><dd><div class=\"educator-rating-details\" data-path=\"/educator_ratings/rrp_data?resourceable_id=99704&amp;resourceable_type=Boclips%3A%3AVideoMetadata\"><span class=\"not-yet-rated\">Not yet Rated</span></div></dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<dt>Grade</dt><dd title=\"Grade\">Pre-K - 11th</dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<dt>Subjects</dt><dd><span><a href=\"/search?keywords=individual&amp;page=18&amp;search_tab_id=1&amp;subject_ids%5B%5D=1216220\">All Subjects</a></span></dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<dt>Media Type</dt><dd><span><a href=\"/search?keywords=individual&amp;page=18&amp;search_tab_id=2&amp;type_ids%5B%5D=4543647\">Instructional Videos</a></span></dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<dt>Source:</dt>\n<dd></dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<dt>Date</dt>\n<dd>2017</dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<i aria-hidden='true' class='fai fa-solid fa-language'></i>\n\n</dl>\n</div>\n<div class='detail'>\n<dl>\n<dt>Audiences</dt><dd><span><a href=\"/search?audience_ids%5B%5D=371079&amp;keywords=individual&amp;page=18&amp;search_tab_id=1\">For Teacher Use</a></span></dd><dd class=\"text-muted\"><i class=\"fa-solid fa-lock mr5\"></i>2 more...</dd>\n</dl>\n</div>\n<div class='detail'>\n<dl>\n\n</dl>\n</div>\n</div>\n</div>\n<div aria-labelledby='educator-ratings-heading' class='rp-info-section'>\n<h2 class='title sr-only' id='educator-ratings-heading'>Educator Ratings</h2>\n<div id=\"educator-ratings-root\"></div><div id=\"all-educator-ratings-root\"></div><div id=\"educator-rating-form-root\"></div>\n</div>\n</div>\n<div class='rp-resource'>\n<div aria-label='Show resource details' class='rp-show-info' role='button' tabindex='0'>\n<i class='fai fa-solid fa-align-left'></i>\nShow resource details\n</div>\n<div aria-label='Video player' class='player ie' id='player-wrapper' role='region'>\n<div class='relative container mx-auto' id='lp-boclips-visitor-thumbnail'>\n<a class=\"block\" data-html=\"true\" data-placement=\"bottom\" data-trigger=\"click\" data-content=\"<div class=&quot;text-center py-2&quot;><a class=&quot;bold&quot; 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