Question: Where did the holiday that falls on the day of the 2013 Sydney to Hobart Yacht Race originate?

Related documents: [0]  [DOC] The 2013 Sydney to Hobart Yacht Race, sponsored by Rolex, is the 69th annual running of the "blue water classic" Sydney to Hobart Yacht Race. As in past editions of the race, it is hosted by the Cruising Yacht Club of Australia based in Sydney, New South Wales. As with previous Sydney to Hobart Yacht Races, the 2013 edition began on Sydney Harbour, at 1pm on Boxing Day (26 December 2013), before heading south for 630 nautical miles (1,170 km) through the Tasman Sea, past Bass Strait, into Storm Bay and up the River Derwent, to cross the finish line in Hobart, Tasmania. [END] 
[1]  [DOC] Boxing Day is a holiday celebrated the day after Christmas Day. It originated in the United Kingdom, and is celebrated in a number of countries that previously formed part of the British Empire. Boxing Day is on 26 December, although the attached bank holiday or public holiday may take place either on that day or two days later. [END]  
Answer: United Kingdom
United Kingdom