It increased the size of the United States because it was based on the idea that America was destined by God to expand from the Atlantic to the Pacific, in other words, it encouraged many to expand west.
hope this helps i actually just learned about this in class :)
Answer:
Alexander the great was a king
Frederick Douglass--Abolitionist Leader
Douglass's goals were to "abolish slavery in all its forms and aspects, promote the moral and intellectual improvement of the COLORED PEOPLE, and hasten the day of FREEDOM to the Three Millions of our enslaved fellow countrymen." How else did Douglass promote freedom?