Discovery of Thomas Jefferson at University Teaches Researchers About ScienceSavePrintA chemical hearth recently discovered in the walls of the Rotunda dates back to its Jeffersonian origins. Dan Addison / University of VirginiaThe Associated Press10/16/2015|Updated: 10/16/2015Dan Addison / University of VirginiaWe had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.Share this articleLeave a commentThe Associated PressAuthorAuthor’s Selected ArticlesWinter Storm Threatens to Bring Blizzards and Ice to Parts of US, Hampering Holiday TravelDec 28, 2025Fire in Old Port of Portland, Maine, Damages Its Historic Waterfront and Sinks at Least 1 BoatDec 28, 2025Bus Accident Leaves 15 Dead in Guatemala and Government Declares 3-day National Mourning PeriodDec 27, 2025Pilot Dies in Ultralight Plane Crash Off Copacabana Beach in BrazilDec 27, 2025