This idiom derives from a German proverb, das Kind mit dem Bade ausschütten. The earliest record of this phrase is in 1512, in Narrenbeschwörung (Appeal to Fools) by Thomas Murner; this book includes a woodcut illustration showing a woman tossing a baby out with waste water. It is a common catchphrase in German, with examples of its use in work by Martin Luther, Johannes Kepler, Johann Wolfgang von Goethe, Otto von Bismarck, Thomas Mann, and Günter Grass.[6][7]