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 Christmas tree Felixstowe free of charge by a cargo ship of the Fred Olsen Line. As of at least 2007, the tree was shipped across the North Sea to Immingham by DFDS Tor Line. As of 2018, it has been the responsibility of Radius Crane Management Ltd. to transport, guard and erect the tree in Trafalgar Square. The Trafalgar Square tree is decorated in a traditional Norwegian style and adorned with 500 white lights. In 2008, the tree utilised low-wattage halogen bulbs which used 3.5 kW of power. At the base of the tree stands a plaque, bearing the words: "This tree