Typically, slaves would travel from different countries on boats known as "slave ships." The quality of these ships were extremely poor, because the slaves were all crammed inside the boat. Many of the slaves would die on voyages to different countries.
It would be the "legislative branch" that is divided into two separate chambers--one is called the Senate and the other is called the House of Representatives. This is called a "bicameral" legislature.
The treaties were used to remove the Cherokee and other native American tribes from their lands by telling and persuading them that they would be moved to a better 'more civilized' place for new life opportunities.
Actions by the federal reserve system to expand or contract the money supply