When did Mussolini fight the Socialists?

On November 21, 1920

Benito Mussolini and Leandro Arpinati led squads of fighters in the melee between Fascists and Socialists in Bologna, Italy.

This Day in History - November 21

1783

French chemistry and physics teacher Jean-François Pilâtre de Rozier made his first successful balloon flight.

1998

The Legend of Zelda: Ocarina of Time was released in Japan for the N64.

1676

Danish astronomer Ole Rømer presented the first measurements of the speed of light.

1789

North Carolina became the 12th state to join the United States of America.

695 AD

Pope Sergius I consecrated Willibrord as bishop of the Frisians at the Church of Santa Cecilia in Trastevere in Rome, Italy.

What Happened on Nov 21?

What Happened in 1920?