Before WWII Japan had a <em>Oligarchy government</em>, kind of a military dictatorship; and when the U.S. occupied Japan after the war, political institutions were took apart through the <em>SCAP</em> policy (<em>a set of standards for security policies</em>) transitioning from Oligarchy to Democracy, they tried to get rid of their imperial system, but there was not a complete agreement on that, so only the position of Imperialism was replaced with democracy.
Answer:
It's the way that people living in groups make decisions
They rode by horse back and knocked on doors. They probably used sign laugnge or Morse code