Adolf Hitler, born in 1889 in Austria, desired to be an artist but faced rejection and hardship, leading to a troubled life that included military service in World War I where he gained fame as a war hero. After the war, he joined and transformed the German Workers' Party into the Nazi Party, promoting extreme nationalism and anti-Semitism, ultimately rising to power through legal means during the Great Depression. By exploiting political instability and employing propaganda, he established a totalitarian regime, culminating in the enactment of oppressive laws against Jews and aggressive military expansion that disregarded international treaties.