Thirty Years' War

== English == === Proper noun === Thirty Years' War (historical) A conflict fought largely within the Holy Roman Empire from 1618 to 1648. ==== Derived terms ==== ==== Translations ==== ==== See also ==== Eighty Years' War === Further reading === “Thirty Years' War”, in OneLook Dictionary Search. “Thirty Years' War”, in Collins English Dictionary. “Thirty Years' War”, in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.