Trafalgar Square Authority in conjunction with the charity Unicef, who began ticketing the event to control crowd numbers. A Christmas ceremony has been held in the square every year since 1947. A Norway spruce (or sometimes a fir) is presented by Norway's capital city, Oslo as London's Christmas tree, a token of gratitude for Britain's support during World War II. (Besides war-time support, Norway's Prince Olav and the country's government lived in exile in London throughout the war.) The Christmas tree is decorated with lights that are switched on at a seasonal ceremony. It is usually held twelve days before Christmas Day.
Admiralty, Trafalgar Square Paul McLachlan, created a special haggis using a rare and expensive 50-year-old Balvenie malt whisky. In 2014 the building was acquired by Fuller's Brewery. It re-opened as the Admiralty pub on 23 October of that year, two days after Trafalgar Day. The opening was performed by Admiral Lord West of Spithead, who had been First Sea Lord from 2002 to 2006, and by the brewery's chief executive Simon Emeny. During the opening a magnum of London Pride beer was ceremonially smashed on the pub's exterior. The pub's interior decor is inspired by , Nelson's flagship at the Battle of Trafalgar.