Lt. Colonel Percival Harrison Fawcett (18 August 1867 – in or after 1925) was a British artillery officer, archaeologist and South American explorer. Along with his eldest son, Fawcett disappeared under unknown circumstances in 1925 during an expedition to find the Lost City of Z – his name for an ancient lost city, which he (in all likelihood, accurately) believed to be El Dorado, in the uncharted jungles of Brazil. John Hemming, the Canadian explorer and historian of the Brazilian Indians, declared Fawcett a “Nietzschean explorer” spouting “eugenic gibberish”, although the writer David Grann also believes that Fawcett exhibited enlightened traits.