In: who was the third president of the united states??

Out: Thomas Jefferson

In: why has mr trelawny hired the captain the ship and the crew??

Out: to hunt for the treasure

In: who came up with the type of calculator known as 'the step reckoner'??

Out: German mathematician Gottfried Wilhelm Leibniz

In: the first african-american union in the us was??

Out:
the National Colored Labor Convention