1016: King of Denmark Cnut the Great [Canute] claims the English throne after the death of Edmund Ironside
The German Beer Purity Law (Reinheitsgebot)German Beer Purity Law

1487: The first German Beer Purity Law (Reinheitsgebot) is promulgated in Munich by Albert IV, Duke of Bavaria, stating beer should be brewed from only three ingredients – water, malt and hops

1786: Grand Duke of Tuscany Leopold II promulgates a penal reform, making it the first state to abolish the death penalty. November 30 is commemorated as Cities for Life Day.

1876: Archaeologist Heinrich Schliemann discovers the gold Mask of Agamemnon at Mycenae in modern Greece, known as “the Mona Lisa of prehistory”

Source: Onthisday.com