They are all responsibilities of U.S. citizens. They are not rights because they are considered mandatory. An example of a right would be freedom of speech or the right to bear arms.
Here are some reasons: They were curious. They were just natural born explorers. They wanted to spread their religion.
The 13th amendment is applied to legal and illegal immigrants because it is declared that slavery or any intolerable act is not done within the US meaning legal immigrants should have the same rights and jobs as any other American and shouldn't be treated unconstitutional .
He was the role leader in the war