A case decided by the Supreme Court of the United States in 1857 and seen as a landmark decision in the debate surrounding the constitutionality and legality of slavery.
The correct answer would be Ethiopia
Answer
Agriculture
Explanation
During the early years the expansion of many countries to foreign countries was for the search of gold. Most of them were the Europeans expansion to America. They then mined all the gold in the Caribbean Island and then after that they started practicing agriculture.
The farmed on different types of crops and they were able to produce more raw materials for their industries and also the fast foods which sustained their live hood.
The biggest reason for compromises on the slave issue was that too many slaves states are being added to the Union.
The Tiananmen Square Massacre was a military attack on unarmed civilians protesting against economical changes introduced by Deng Xiaoping (focus on material prosperity instead of ideological purity). The government had hidden many facts about the bloo dy riot, so today there are many unexplained aspects - like the amount of victims, ranging from a few hundreds to a few thousands. It took place on 3-4 June of 1989.