Because of civil unrest, severe unemployment, and because of the great famine. Irish people were mostly farmer so they depended on potatoes. Oh and it went on from 1820 to 1870
The establishment of the Open Door Policy (1899-1900) and the response to the Boxer Rebellion (1900) showed that the United States wanted to (2) gain access to Chinese markets. The Open Door Policy was basically a trade agreement where powers could trade openly with China, but more so in a way to reap benefits than benefiting both countries. The Boxer Rebellion was a rebellion from Chinese nationalists opposing European and American intervention for trade in China.
A clash between communism and capitalism. USSR sided with communism, and the U.S. sided with capitalism.
i think that would be christopher colombus lol