U.S. President Franklin D. Roosevelt had a lot to think about in 1939. The world had been suffering from the Great Depression for a decade and the Second World War had just erupted in Europe. On top of that, the U.S. economy continued to look bleak. So when U.S. retailers begged him to move Thanksgiving up a week to increase the shopping days before Christmas, he agreed. He probably considered it a small change; however, when FDR issued his Thanksgiving Proclamation with the new date, there was an uproar throughout the country.