The answer is the cotton gin i am pretty sure
hope this helps (:
One of the most significant challenges is building an airplane had to do with "propulsion", since the technology that allowed motors to have enough energy to lift an airplane into the sky with a passenger wasn't available for most of history.
Four score today Shows what the war had done to the civilians and how they can be better and make slavery not win to make the North win.<span />
Answer: C " If elected, I will lower taxes for smaller businesses."
Explanation: Under many previous Republican presidents they have introduced tax cuts for many businesses large and small, Including a somewhat recent tax cut under President Trump. Which the current president elect is suspected to pull back.
Tip: For future reference, note that the Republican Party does not believe in subsidized housing, or universal healthcare for all. However increasing spending on public education is a somewhat divided topic within the party.
He took throne after his fathers death in 336 BCE, therefore the answer would be 336 BCE.