Here are some one liners...
The Stockholm Bloodbath or Why Killing Off the Rebel Leadership Hardly Ever Works -- King Christian the 2nd acts in bad faith and sets himself up for the fall of the Union. I also talk about leaderless organizations like Al-Qaeda.
The Revolt of the Communities of Castile -- This is a fairly common revolt against the nobility but juxtaposed with the Stockholm Bloodbath, it is a lesson in what is allowed in war and what is not.
On the Freedom of a Christian -- Martin Luther is excommunicated and the printing business for his pamphlets is soaring. I also talk about how government rhetoric sounds a lot like a pulpit haranguing at times.