How and why did imperialism grow and transform economic and political systems during the during the 19th and 20th centuries?

They were so powerful that they started to conquer just like the old Roman Empire

the indians crossed artificial boundaries, setting the stage for conflict

yes

explanation:

the fighting words doctrine, in united states constitutional law, is a limitation to freedom of speech as protected by the first amendment to the united states constitution. in 1942, the u.s. supreme court established the doctrine by a 9–0 decision in chaplinsky v. new hampshire.