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 that beer should be brewed from only three ingredients: water, malt, and hops

1786: Grand Duke of Tuscany Leopold II promulgates a penal reform, making Tuscany the first state to abolish the death penalty; November 30 is now 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”

1909: British House of Lords rejects David Lloyd George’s ‘People’s Budget’, which tried to shift tax burden to the wealthy. Leads to the Parliament Act, designed to stop the unelected house from overruling the will of the elected house.

Source: Onthisday.com