Sept. 3 (UPI) -- On this date in history: In 1777, the U.S. flag was flown in battle for the first time during a Revolutionary War conflict at Cooch's Bridge, Del. Advertisement In 1783, the Treaty of Paris was signed, officially ending the American Revolutionary War and recognizing U.S. independence from Britain. In 1914, Giacomo della Chiesa is elected pope , taking the name Benedict XV. His papacy lasted more than seven years until his death at 67 in 1922. In 1916, the Allies turned back the