Poemless, on second thought, I possibly misunderstood what you meant.

However, the Thirty Years' War comparison might still be worth to expound on. That war faced up Christian Europe with the ugliness of romanticised feudal wars and heroised religious wars. In this case, the source of ignorance was not so much the distance of colonies, but (a) the small circle of effect of previous wars and (b) the effectiveness of victors' writing of history. But the Thirty Years' War laid waste to a very large area, included even more countries among the warring parties, and ended in a stalemate. The results included the appearance of rules of war, the rise of diplomacy, the final break of the unity of the Church, thus the spread of secularism, and the rise of the Enlightement.

_{*Lunatic*, n.
One whose delusions are out of fashion.}

Was referring to The United States.  The Trail of Tears was in the early 1800's.  But to be fair, the killing off of Native Americas began as soon as Europeans set foot on the continent, 300 years earlier.

Those who can make you believe absurdities can make you commit atrocities. -Voltaire