Why do we sometimes call the european middle ages the dark ages

What principle did president truman invoke in sending u.s. troops into south korea without first asking congress to declare war?

Lloyd’s of london was one of the first institutions to offer insurance to merchants and joint-trade companies. a major part of the insurance system involved people who agreed to take responsibility for the insured losses in return for a fee. what were these risk-takers known as? a. joint-stock companies b. investors c. underwriters d. merchants e. capitalists

What was the codename of the international coalition formed to seek removal of iraqi troops from kuwait?