Trafalgar Square death, and the square did not open until 1844. The Nelson's Column at its centre is guarded by four lion statues. A number of commemorative statues and sculptures occupy the square, but the Fourth Plinth, left empty since 1840, has been host to contemporary art since 1999. The square has been used for community gatherings and political demonstrations, including Bloody Sunday in 1887, the culmination of the first Aldermaston March, anti-war protests, and campaigns against climate change. A Christmas tree has been donated to the square by Norway since 1947 and is erected for twelve days before and after Christmas
Trafalgar Square proposed budget cuts. During the night the situation turned violent as the escalation by riot police and protesters damaged portions of the square. In November 2015 a vigil against the terrorist attacks in Paris was held. Crowds sang the French national anthem, "La Marseillaise", and held banners in support of the city and country. Every year on the anniversary of the Battle of Trafalgar (), the Sea Cadet Corps holds a parade in honour of Admiral Lord Nelson and the British victory over the combined fleets of Spain and France at Trafalgar. The Royal British Legion holds a Silence in