The assassination of Franz Ferdinand.
a serbian hitman shot him, and Austria-Hungary declared war on serbia. Russia got involved because of an alliance with serbia, then came france and britain, germay and the ottoman empire, italy some minors in tha balkans, people in asia and africa, and when the russians "left" the war, America joined in
I was surprised by the fact the North did not favor slavery for long, since slaves can also be used to work in factories like industrial northern companies had
2. Yes, Jim Crow Laws and Black Codes
They went to do industrial labor at factories because the businesses thought it would be cheap labor making the head of the company get more money by hiring them for cheap.
It went into affect on April 17, 1861
Answer:
In my opinion it was Soviet Union, as they were trying to spread their ideology across the globe, sometimes even by interfering in the internal issues of certain countries.
Explanation:
Although, we can say that both countries contributed to the rise of tension, Soviet Union especially made things harder. They wanted to spread Communism, and didn't allowed civil liberties. On the other sides, they wanted to impose their strict regimes in the countries of Eastern Europe, and to destroy any type of rebellion against them.
By spreading their influence outside Eastern Europe they started endangering the states of capitalist democracy.