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
Christmas tree (31 October). In Canada many families wait until after Remembrance Day, as to show respect to fallen soldiers. Some households do not put up the tree until the second week of December, and leave it up until 6 January (Epiphany). In Germany, traditionally the tree is put up on 24 December and taken down on 7 January, though many start one or two weeks earlier, and in Roman Catholic homes the tree may be kept until February 2 (Candlemas). In Italy, Ireland and Argentina, along with many countries in Latin America, the Christmas tree is put up on 8 December