The bubonic plaque changed the social structure of Europe by this:
Before, the nobles and aristocrats were the 'body' that ran almost everything political. However, after the bubonic plague, this was shifted towards the common people. So the common people basically got more rights.
hope this helps :D
The great task described in the gettysburg address was to rid the nation of slavery and unite america once agian
The roman empire persecuted christians
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they may be invented by teachers :)
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Texans thought that life and property were safer within the United States than in an independent Texas. Texas was also in debt and the militia wasn't as great.