In conjunction with the 100th anniversary of America’s entry into the war on April 6, 1917, The Great War, a six-hour documentary presented over three nights, explores how World War I changed ...

W. D. Stevens/Library of Congress. In 1917, on the brink of the U.S. entry into the Great War, a man named George Creel wrote a letter to President Woodrow Wilson. Creel was a journalist who had ...