On 01/22/1917, the German government gave attention that unrestricted submarine warfare would be proceed. When five United States vessels had been sunk by April, Wilson asked Congress for an announcement of war. October 1929 the stock market crashed, wiping out 40% of the paper values of common stock. Even after the stock market collapse, anyhow, politicians and industry leaders continued to issue optimistic prediction for the nation's economy. But the Depression expand, confidence evaporated and many are gone their life savings.
