When did slavery start in ameica?

The goal of U.S. foreign policy during the cold war was to fight the spread of what Soviet Union style of government and economics? What is a 1789 quarter dollar worth? What is the value of an 1841 Indian head penny? What did the Albany Plan of Union call for? What advantages did whites have over blacks in a revolt? What is the value of an 1855 US 2.50 dollar gold piece? What are facts and opinions grant might have stated about the civil war? Under the terms of the Compromise of 1850 what was the decision about slavery in new states? What is the significance of black history? What did the United States gain from the Gadsden treaty? What caused tension between the north and the south? Did progressives try to make America more democratic during the Progressive Era and industrialization? Was the protestant work ethic important in all the New England Colonies? What is the value of an 1897 shield nickel? By 1830 the most pressing social issue for reformers was? What is a 1945 d penny with a star on it worth? How much is a real nice 1771 spanish colonial 4 reales coin worth? Why was north americaso valuable and desired by both the french and the english? 4 Which abolitionist was known for her extraordinary oratorical gifts? What was the freedmen's bureau and who did it help?