The Third Reich was Nazi Germany; it lasted 12 years, from 1933 to 1945. It started after Adolf Hitler became the head of government. On 23 March 1933, the Reichstag (parliament) passed the Enabling Act, which let Hitler's government command the country without help from the Reichstag and the presidency. This gave him total control of the country and the government. Hitler, in effect, became a dictator.