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.
Boston Christmas Tree the lighting and the day after. In 2015, CTV produced and aired a 30-second commercial over a period of 10 days. They also provided digital promotion and news promotions. CTV estimates that this contribution represents a benefit to the province. The tree is also promoted on Facebook and Instagram. Boston Christmas Tree The Boston Christmas Tree is the City of Boston, Massachusetts' official Christmas tree. A tree has been lit each year since 1941, and since 1971 it has been given to the people of Boston by the people of Nova Scotia in thanks for their assistance after the 1917