The empire was spit because it was believed that this empire had become to large and complex for one ruler to handle.
The Great Compromise solved the issue of representation by putting the ideas of large(Virginia) states and small( New Jersey) states together. This compromise started off by keeping a two house Congress which were the House of Representatives and the Senate. The House of Representatives came from the large states plan, and the Senate came from the small states plan. The first house represented the people, and it involved a number of representatives based on population of the state. The second house represented the states, and each of the states will have two senators that were elected by their legislature which constructed equal representation.
So i imagine you mean the people that got free form the emancipation proclamation. What the emancipation did was say it was illegal for people to own any slaves. Former slaves didn't fully get to have equal rights until the 1900's. So in summary all it did was make it illegal to own slaves and the Confederacy of America had to accept that when trying to join back up with he The United States
The spaniards were excited about making a new colony on land that was "Claimed" for them by explorers.
