Answer:
Explanation: John Brown was a militant American abolitionist. He becane a martyr during the raid on the federal arsenal at Harpers Ferry. His ideas and actions incited the slave insurrection that lead to the American Civil War.
They spread industrial technologies and products across wide areas.
Answer: the new military technology.
Explanation:
Answer:
Support European colonies.
Explanation:
As the US became developed the country abandoned the isolationist policy and started to get involved in a series of international issues. Quickly the American government realized that if the US started to support the European Colonies, especially those in Latin America, and helped them to gain independence from Europe, there would be a big sphere of influence on the American continent. This is called the big stick diplomacy first developed by Theodore Roosevelt. With that the US became more and more relevant internationally.
