Here are some one liners...
The Great Plague of London -- 70,000 to 100,000 people are going to die and this isn't the worst outbreak of the Black Death in the 17th century. It's just the worst for London. I also talk about Ebola, briefly.
The Government Control of Capitalism -- A New French Minister of Finance imposes strong central control over the economy and it works! It stops working after he dies, causing Adam Smith to recommend "Leave-me-alone" capitalism 100 years later.