Barbara Wertheim Tuchman (January 30, 1912 – February 6, 1989) was an American historian and writer that wrote novels based with military. She became extremely known first after she wrote "The Guns of August" (which was later reprinted as "August 1914"). She received a Pulitzer Prize for General Non-Fiction for that novel. She also wrote several other novels. She was born Barbara Wertheim in New York City; she died in Greenwich, Connecticut at the age of 77.