Not having the info graph I'm not 100% what your teacher wants but Europe wanted the south to win because they wanted the cotton and other goods the south produced. They also knew a divided country was a weaker country.
The first major immigration of Czechs occurred in 1848 when the Czech "Forty Eighters" fled to the United States to escape the political persecution by the Austrian Habsburgs. ... Unlike previous immigration, new immigrants were predominantly Catholic.