📅 Today in HistoryOctober 17

Empress Wu Zetian establishes the Zhou Dynasty of China.

London tornado of 1091: A tornado thought to be of strength T8/F4 strikes the heart of London.

The English capture King David II of Scotland at Neville's Cross and imprison him for eleven years.

An Ottoman army defeats a Hungarian army at the Second Battle of Kosovo.

The University of Greifswald is established as the second oldest university in northern Europe.

Anti-Catholic posters appear in Paris and other cities supporting Huldrych Zwingli's position on the Mass.

Poczta Polska, the Polish postal service, is founded.

Kepler's Supernova is observed in the constellation of Ophiuchus.

French king Louis XIII is crowned in Reims Cathedral.

The nine regicides who signed the death warrant of Charles I of England are hanged, drawn and quartered.