Answer:
The first Spanish settlement in what is now US continental soil was built in Florida. The very first Spanish settlement in the New World was built by Columbus on the Hispaniola island, which is today´s Dominican Republic.
Explanation:
Freedom of religion not sure if right
A good argument for it is that it created peace. It literally ended an almost 7 year war. A downside is that it created a line down the middle of the US which caused people to fear crossing it. Everyone stayed where they were and never explored.
Hope this helps!