December 1970 protests in Poland

The December 1970 protests in Poland, also known as the December 1970 events (Polish: Wydarzenia Grudnia 1970), December events (Polish: Wydarzenia grudniowe), December revolution (Polish: Rewolta grudniowa), and the Coast Massacre (Polish: Masakra na Wybrzeżu), occurred in northern Poland from 14–19 December 1970. The protests were sparked by a sudden increase in the prices of food and other everyday items while wages remained stagnant.

Source: Wikipedia — December 1970 protests in Poland (CC BY-SA 4.0)