Defenestration (from Modern Latin fenestra) is the act of throwing someone or something out of a window. The term was coined around the time of an incident in Prague Castle in the year 1618 which became the spark that started the Thirty Years' War.

What started the 30 Years war Defenestration?

Defenestration of Prague, (May 23, 1618), incident of Bohemian resistance to Habsburg authority that preceded the beginning of the Thirty Years' War.

What caused Defenestration of Prague?

PRAGUE, DEFENESTRATION OF.

The first Defenestration of Prague occurred on 30 July 1419, when radical Hussites, in an action to free several Utraquists imprisoned by the magistrates, killed seven city councillors by throwing them out of the window of the New Town Hall and into the midst of an angry Hussite mob.