World War I was considered to truly be a world war because of the amount of people and nations that got involved in the war. The
main combatants were Britain, France, and Russia on the Allied side and Germany, Austria-Hungary, and the Ottoman Empire on the Central Powers side. Not only were the nations involved but all of the resources of the European colonial empires were brought to bear. Smaller nations in Europe got involved on either side due to a complex system of alliances that existed in Europe before the war. As the war wore on, even more nations were dragged in. The reasons varied. Some, like the United States, got involved by trading with one side. Others, like Italy and Japan, opportunistically jumped in to make territorial gains. By the end of the war, most of the world was involved-making it truly a world war. Given that the world was at war, how were the Central Powers defeated?
One of reasons the Central Powers were defeated was the entrance of the US forces into the war brought vast new resources to the allied forces. This also meant that the Allied forces were able to produce more war materials than the Central Powers, which proved to be decisive.
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The invention of paper greatly helped the spread of literature and literacy, making books more convenient to use and cheaper. Scholars at the Imperial academies were issued with thousands of sheets of paper each month by the government.
