[dragonwriter]

> The American Revolution and War of 1812 clearly are not ones; the UK was not a democracy.

At what point precisely did the Westminster system, one of the more common models of modern democracy, become a democracy?

Note that the later you peg and the more narrowly you define “democracy” to justify it, the more you make the case that there have been so few democracies that, given the actual historicsl frequency of interstate wars and the number of nations available at any time, the number of wars expected to have a democracy on either side is expected to be near zero even if democracy in both sides of a dyad does nothing to decrease the probability of war between the countries.

(Also note if you claim it's not a democracy because it had territories unrepresented in the national government despite the form of government being democratic, that has the same effect—and even rules out the modern US as a democracy, as well.)

[slededit]

The transitioned happened during the reign of Queen Victoria where the monarchy transitioned from a seat of power to a ceremonial role.