Answer:
our history is important to our culture n stuff & so that we don't repeat history, like slavery, and the Holocaust.
Explanation: history is important >:(
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
Winston Leonard Spencer-Churchill, as he was the leader of the United Kingdom, one of the allied powers during World War 2. Remember to check yourself.
Hope this helps :)