Everyone who has thrown a party knows that they can go wrong in all manner of ways. This is true for parties throughout history, as well. The historical record is full of celebrations that went awry. Many historical parties involving heads of state and power struggles ended in bloodshed - some of them served as inspiration for Game of Thrones. In more recent times, investors put millions of dollars into events and festivals that brought in major artists. But any time thousands of people gathered in a small area and things go wrong, it can lead to injury and death.
Here are 12 of history's worst parties gone wrong.