Battle of George Square

The "Battle of George Square", also known as "Bloody Friday" and "Black Friday", was one of the most intense riots in the history of Glasgow; it took place on Friday, 31 January 1919. The dispute revolved around a campaign for shorter working hours, backed by widespread strike action. Clashes between the City of Glasgow Police and protesters broke out, leading to the British government sending soldiers and tanks to the city to prevent any further gatherings due to their fear of a Bolshevist uprising. It was described as a "socialist revolution" by supporters,^[2] as had happened in the 1917 Russian Revolution, and was occurring in Germany and in the Austro-Hungarian Empire while the 'Forty Hours' strike unfolded.

• http://en.wikipedia.org/wiki/Battle of George Square