American historian Nancy Hatch Dupree, who dedicated most of her life to preserving Afghanistan's heritage, died in a Kabul hospital today. She was 89. Dupree first arrived in the Afghan capital in 1962 as the wife of a diplomat. Over the next five decades since, she travelled throughout the country, wrote five guidebooks and documented the war-torn nation's past.<br/><br/>Many Afghans took to Twitter to pay tribute to Dupree – sometimes referred to as Afghanistan's "grandmother". US special charge d'affaires Hugo Llorens, America's top diplomat in Afghanistan in the absence of an ambassador, said, Dupree had been a pillar of the American community in Afghanistan and would be forever remembered.