What's the difference between democracy and monarchy kids?

Democracy is when the people get to choose their own leaders through election and normally people vote every after 4 years while monarchy is kind of like a royal type of government where kings and queens rule the country and when they die they pass their leadership on to their children so basically it's just a lifetime rule where people don't have to elect.

If i remember correctly it was caused by people hurling bodies at a country for some reason and them they all became infected