Bloody Sunday clashes in central London.

Bloody Sunday was an event which took place in London, England on 13 November 1887, when a crowd of marchers protesting about unemployment and the Irish Coercion Acts, as well as demanding the release of MP William O'Brien, clashed with the Metropolitan Police. The demonstration was organised by the Social Democratic Federation and the Irish National League. Violent clashes took place between the police and demonstrators, many "armed with iron bars, knives, pokers and gas pipes". A contemporary report noted that 400 were arrested and 75 people were badly injured, including many police, two policemen being stabbed and one protester bayonetted.

Central London is the innermost part of London, in England, spanning the City of London and several boroughs. Over time, a number of definitions have been used to define the scope of Central London for statistics, urban planning and local government. Its characteristics are understood to include a high-density built environment, high land values, an elevated daytime population and a concentration of regionally, nationally and internationally significant organisations and facilities.