What is Boxing Day and why do so few in the US celebrate it?

CLARKSBURG, W.Va. (WBOY) — On Dec. 26, most Americans are either headed back to work or enjoying what is left of their time off work, but in Great Britain and many other countries around the world, people are celebrating Boxing Day.
In countries that celebrate it, Boxing Day comes from a continuation of the gift-giving tradition of Christmas. Britannica says that the day was when servants, tradespeople and the poor were given their holiday gifts. However, the day's meaning has shifted its