The bone of the arm (humerus) meets both the ulna (the inner bone of the forearm) and radius (the outer bone of the forearm) to form a hinge joint at the elbow. The radius and ulna also meet one another in the elbow to permit a small amount of rotation of the forearm.
The emigres were those who helped to spur on the revolution. People were tired of being poor and watching the royalty get richer without any work.
The idea that it was God's will for the Americans to expand west and control a lot of land for the United States. He was a secret agent for the United States and no one knew what he was actually doing. He was an American emigrant to Alta California and a signer to the California Constitution.