> Also, the 19th century was far more conflict-prone than I thought.

Let me guess, you're American? For the US, once Northern America was settled, the US established and the conflicts with Natives and the Brits resolved, all you had was the Civil War...

But here in Europe, up until 1945, it was constant warfare. And that not just the large wars between entire countries that some czars or emperors drew up, there were also countless unnamed skirmishes and dealings between all the countless fiefdoms.