How did Thomas Edison's inventions benefit the US?

What was the difference between native American and white settlers culture? Did MrSifford contribute anything to the African-American community? Marcus garvey led a movement for African Americans to what? How much would a 1944s penny worth now 2011? When was the us dollar introduced? Were all carpetbaggers bad? What was the chief reason for the opposition of the south to the election of Abraham Lincoln in 1860? What is the value of a 1993 US 1 dollar bill? What is the value of a 1945 penny with one cent printed on the back? Did anti federalists want the states or central government to have more power? What territory was added to the US as a result of the Adams onis treaty? Why white people treat black people like slaves? What obstacles did Lewis and Clark face? 1941 liberty dime? What did Mary Martha Reid do during the Civil War? Some americans felt that joining what might lead to fighting in another war? What food did native americans grow? Did the slaves during the civil war were allowed learn and write? What is value of an 1881 US 5 dollar gold piece? Did King George III send soldiers to capture the colonists military supplies?