An amendment to the Constitution must be ratified by "three-quarters of the states" although it should be noted that it is rare for this to occur in the US.
I think It's the rise of American labor unions
army is a group of people fighting for something or someone.
Also known as the Bill of rights established in 1689. This lays down the power of Monarchs and set out the rights of parliament including free elections an freedom of speech.
It sets out certain rights of individuals including the prohibition of cruel and unusual punishment and reestablished the right of protestants to have arms for their defence within the rule of law.