How did each of the following reasons contribute to the fall of the byzantine empire? justinian’s plague: belisarius and invading forces: the macedonians: the crusades: the ottoman turks:

What best describes the transportation within cities in the early 1800s

Principles of cultural identity have been used to justify conflict. true false

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?