The Great Depression & Dust Bowl By virginiariri Oct 29, 1929 The Great Depression begins 1931 Black Blizzards begin Jun 18, 1933 First soil erosion control camp opens 1934 Drought covers more than 75% Jun 24, 1934 Roosevelt signs Taylor Grazing Act Jan 15, 1935 Government cattle buying saves many farmers Apr 14, 1935 Black Sunday, the worst black blizzard 1937 Shelterbelt Project begins 1938 65% reduction of soil blowing although the drought still continues 1939 Rain finally comes, the drought ends