Answer:
Emmett Till's murder was such a spark in the civil rights movement because there was proof that Emmett was not guilty of what the people accused him of, he was only 14 years old at the time of his death and because the people that killed him admitted in a national newspaper that they killed him and were still found not guilty.
Terrorism could have links to religion, and or political conflicts. some terrorists events could be linked to historical events as well.
Two major forms were indentured servitude and full slavery. In slavery, people were slaves and had to work forever or until they get sold or freed. In indentured servitude, people would work until their debts were paid, commonly these debts being there because they wanted to get to the new world.
