How many failures did Eli Whitney have?

What role did the theory of the states rights play in the outbreak of the American civil war? What shaped the beliefs of many native American tribes and what are these beliefs? What is the colonial loom? What event led to southern states seceding? What color stripe is directly under the blue field on the US flag? What is the synonym of surrender? Where did Converse Shoes first originate? What did the north and south do to raise money for the war effort? Why are United States coins different sizes? What percentage of the American people died during the American Revolution? What was required to be considered of a colonist in order to go to Georgia? Who were the US presidents during the Cold War? What is the value of a 1890 gold one dollar coin? What is the value of an 1881 US wheat penny with an Indian head on it? Lewis and Clark expedition- us history? What is 1908 five cent worth? What does an S mint mark mean on a 1922 peace dollar? Where can you find information about a 1975 Lincoln penny with the state of Illinois stamped on it? What was the negative effect of the interstate highway system? What years were silver dollars minted?