The Bohemian Revolt (1618-1620) started after Protestants in Prague did what to their Catholic Lords Regents?

The story behind the answer

Correct: Protestants in Prague threw their Catholic Lords Regents out of a castle window—the famous Second Defenestration of Prague (1618). “Defenestration” literally means “throwing out of a window” (from Latin de + fenestra). The victims—two regents, Vilem Slavata and Jaroslav Borzita of Martinice, and their secretary—survived a roughly 20-meter fall, landing in a moat said to be filled with dung. This dramatic act ignited the Bohemian Revolt and helped trigger the Thirty Years’ War.

Context: It echoed an earlier First Defenestration of Prague (1419) that sparked the Hussite Wars, showing Prague’s window-tossing tradition as a political statement. Memory tip: “Prague + windows = defenestration,” a window into Europe’s fierce religious and political conflicts between Protestants and Catholics.