July 15 (UPI) -- On this date in history: In 1799, a French soldier discovered the Rosetta Stone, an ancient stele that served as the key to deciphering Egyptian hieroglyphics. Now housed in the British Museum, Egypt has sought for decades the artifact's repatriation. In 1806, Zebulon Pike began an expedition to explore the American Southwest. In 1907, three organizations -- the Publishers Press Association, the Scripps-McRae Press Association and the Scripps News Associations -- joined to form