An autocracy is a system ruled by one person. Nazi German is an example of autocracy. Hitler directed all the activities inside Germany at that time.
The Congress of the United States in fact retains most of the power in these two areas relative to the President and the individual states, with Congress having the power to declare war and confirm ambassadors appointed by the President.
Answer:
It was due to the weaknesses of the Weimar Government.
I Believe they used something called Cuneiform, It was used by many people from that time period