The fastest way to communicate across continents in the 1500s was by ship. If you wanted to bring a certain message across a continent than there was no faster way than actually sending it on a ship and waiting for the ship to arrive safely to the other continent.
That expansion of slavery was a major problem for the nation
The election make it different because by this time they only want it money and money is earn by the person who knows how to make it I think it was teddy roosevelt