What is the American coin equaling one dollar called?

Is there a date on Andrew Johnson dollar gold coin and what is it worth? What caused the us to get involved in World War 1? Were did the hopewell indians come from? Which year holds the highest value of coins? For who saving the union was more important than ending slavery? What colony Attracted settlers from other Colonies and the West Indies is it Georgia or the Carolinas? Who is the fifth person in the line of succession? Was Lincoln pro or anti slavery? What was the education in the middle colonies like? Did homes have heat in 1910? What is yvonne in native American mean? Why were women prominent in the reform crusades of the early nineteenth century? What is the value of an 1887? What birth defect afflicts African-Americans more than it does other ethnic groups? What is the value of a 1943 US cent? How long have slaves been free? What is the value of an 1835 us 10c coin? What is the value of a 1957 A silver 50 dollar bill? How did slavery begin in Carolinas? What was the average price for a house in 1925?