On this day 26th December 1874 Boxing Day was officially recognized in Britain as a Bank Holiday. The name originates from the custom of Christmas boxes being given to a lord’s serfs and dates back to the middle ages.

Boxing Day is unique to the British and the British Commonwealth. There are so many reasons for this day, many which relate to the social history around the holidays, but what it is not is anything to do with Boxing the sport. Above all,  it is a time to continue the Christmas festivities, and includes, of course, both food and drink.

Here’s a couple of good articles about Boxing Day:

http://www.pauldenton.co.uk/Boxingday.htm

https://www.thespruce.com/essential-boxing-day-food-and-drink-435113