The Interwar period between World War I and World War II saw many social, political, and economic changes. Women were granted suffrage, new inventions like cars and airplanes emerged, and the Great Depression started with the 1929 stock market crash, plunging many into poverty. The Treaty of Versailles officially ended WWI but its terms dissatisfied many. The interwar years also saw the rise of prohibition, mass immigration, and racial segregation before culminating in the outbreak of World War II.