October 21

Friday 21, 1977:

The European Patent Institute is founded

Saturday 21, 1967:

Vietnam War: More than 100,000 war protesters gather in Washington, DC. A peaceful rally at the Lincoln Memorial is followed by a march to The Pentagon and clashes with soldiers and United States Marshals protecting the facility (event lasts until October 23; 683 people will be arrested). Similar demonstrations occurred simultaneously in Japan and Western Europe.

Friday 21, 1966:

Aberfan disaster: A coal tip falls on the village of Aberfan in Wales, killing 144 people, mostly schoolchildren

Monday 21, 1805:

Napoleonic Wars: Austrian General Mack surrendurs his army to the Grand Army of Napoleon at Ulm, reaping Napoleon over 30,000 prisoners and inflicting 10,000 casualties on the losers. Ulm was considered to be one of Napoleon's finest hours.

Monday 21, 1512:

Martin Luther joins the theological faculty of the University of Wittenberg