What circumstances characterized the era of good feelings?

What problems could arise if the united states initiated the marshall plan in european countries without said countries’ cooperation

The formation of business monopolies in the late 1800s was made possible by the (1) effects of laissez-faire policies (2) passage of federal antitrust laws (3) elimination of the free-enterprise system (4) adoption of socialist economic practices

Explain the significance of martin luther king jr's letter from a birmingham jail and i have a dream speech