World War 1 or First World War was known as the Great War or "The war to end all wars", before the beginning of the Second World War.
The principal countries involved in this war were Russia, France, Britain, Italy and the United States of America in one side, and Germany, Austria-Hungary, and Turkey on the other side, forming two opposed alliances: The Allies and the Central Powers.
This war began because of a Serbian nationalist, who killed Archduke Ferdinand, heir of the Austrian throne. Because of this act of terrorism, a great war started, and that come to be known as the major European conflict in a hundred thousand years.
Answer:
B.
Explanation:
I took a test and it was right!
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The period 600 CE to 1450 CE is characterized by the opening of important trade routes between the world known then: Europe, Asia and Africa mainly. The intensification of trade implied a spread of languages, culture (religion) and customs of different peoples. With trade, products and diseases were also exchanged that made the revision of local beliefs and traditions necessary and permanent. To reconfigure the forces of power in those times, innovation was important and in many cases the adoption of religious systems or institutions was a good start for the reorganization of declining societies that should flourish after the fall of the great world empires.