When did Hitler gain conterol of Germany?

Answer 1

Hitler was appointed Chancellor of Germany on January 30, 1933. But he wasn't all-powerful yet- he still had to answer to the President and to the Reichstag (where the Nazi Party did not hold a majority).

On March 23, 1933, Hitler was able to get the Reichstag to pass a constitutional amendment giving virtually all of the government's power to Hitler and his Cabinet. This could be considered the date that Hitler's Dictatorship officially started. Over the next year, the Nazis changed the entire government of Germany to fit their beliefs, such as to strengthen Propaganda and police, build up the military, and punish Jews and political opponents for existing. This process is known as Gleichschaltung("synchronization").

On June 30, 1934, Hitler and his inner circle carried out the "Night of the Long Knives". The few remaining politicians who had opposed Hitler's rise to power were arrested, and generally executed or sent to concentration camps. He also murdered fellow Nazis who were considered a threat to his power, notably Ernst Röhm, the powerful leader of the Nazi Party's private army. Additionally, a small group of Nazis known as "Strasserites" (named after Gregor and Otto Strasser, their leaders) were murdered because they hoped to turn the Nazi Party into a socialist party.

On August 2, 1934, President Paul von Hindenburg died of old age. He was the last obstacle to Hitler's total domination of Germany. With him out of the way, Hitler chose not to hold elections to replace Hindenburg; instead, he merged the office of Chancellor with the Presidency, and created the new office of Führer ("Leader"), which only he held.

So pretty much any of those dates could be considered the date Hitler gained control of Germany.