Wagner's “Der Ring des Nibelungen” (1853) famously features valkyries.

Lowering the gun, Deluca glanced over at his partner. “Shoot these shitdicks if they so much as flinch.”

This was finalised a few weeks later at the Congress of Paris, called to settle the entire Eastern Question.

Shake your moneymaker / You gotta shake your moneymaker / And then?