Final answer:
Hitler first gained the office of chancellor through appointment by President Hindenburg. The appointment was made with the belief that Hitler could be controlled, but it ultimately led to his rise to power as an authoritarian leader.
Step-by-step explanation:
Hitler first gained the office of chancellor in Germany through appointment by President Hindenburg. In January 1933, Hindenburg, under pressure from conservative politicians, called upon Adolf Hitler, leader of the Nazi Party, to form a government. The appointment was made with the belief that Hitler could be controlled, but it ultimately led to Hitler's rise to power as an authoritarian leader.