Adolf Hitler was born in 1889 in Austria and showed early ambitions of becoming an artist, though he was rejected from art school. He volunteered for the German army in World War I and was disturbed by Germany's defeat. Hitler joined the Nazi party and became its leader, gaining popularity through fiery speeches appealing to national pride and blaming the Treaty of Versailles for Germany's struggles. While in prison for attempting to overthrow the government, Hitler wrote his book Mein Kampf outlining his beliefs in German superiority and the need for dictatorship. The Nazis rose to power amid the Great Depression and Hitler became Chancellor, establishing a dictatorship and embarking on World War II by invading Poland. Defeated and isolated, Hitler committed suicide in 1945.