Which document during the 1820s warned Europe not to colonize further in the Americas, pledging U.S. neutrality?

Monroe Doctrine

What's the occupation of Lightning McQueen’s best friend Mater in "Cars"? Who composed the classical piece "Gymnopédie No. 1"? Who served as the first Chancellor of West Germany after World War II? Who formulated psychoanalysis in the early 20th century? Which NFL player is nicknamed the 'Sheriff'?