Byzantium/Constantinople was conquered in 1451, but the empire continued to decline starting around the 18th or 19th centuries. It officially died in WWI. As for how long it was a major threat to Europe, the empire's prime was the 16th century, under Suleiman the Magnificent.
Answer:
As the Cold War heated up in the 1950s, the United States made decisions on foreign policy with the goal of containing communism. To maintain its hegemony in the Western Hemisphere, the U.S. intervened in Guatemala in 1954 and removed its elected president, Jacobo Arbenz, on the premise that he was soft on communism. In 1997, the CIA released files pertaining to the Guatemalan coup that reignited questions about the motivations for U.S. actions in Guatemala. Was the United States concerned with the containment of communism, or was it acting on behalf of the business interests of the United Fruit Company? In this History Lab, students will examine documents, films, photographs, and other primary source materials to analyze U.S. foreign policy during the Cold War.
Explanation:
Negotiation between union leaders and business management is called : Collective bargaining
in collective bargaining, the union leaders and business management usually talked about the more acceptable condition for the workers that would benefit both parties
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The feature is the rule of law. Unlike people, legislature cannot be affected by passion and if law rules then everyone is equal in the eyes of law. If a man rules and has absolute power, they can be affected by various things that might make them abuse their power, and law cannot abuse power on its own.