I would say many thing from life liberty and pursuit of happiness have come through freedom of newspapers talking about government issues or thoughts many books about openly opinionated articles were allowed from these themes. (I'm not an expert just giving a sort of ideas )
Because they have to be read in more than one sitting, which break me up the effect. I think
Answer:
1.Napoleon wanted to show his absolute control and forced many animals to confess to impossible crimes.
2.When Napoleon and Snowball started to fight for power, Napoleon turned greedy and savage.
3.Napoleon later raised a group of dogs to run Snowball off the farm and try to kill him.