a boxing ring
Boxing was not always called Boxing. In the ancient Greek and Roman times, the sport of bashing up the teeth of your opponent during fist fighting was called pugilism. Boxing is known to have been around in some shape or form since 3000bc.
Because it occurred on Boxing Day, the day after Christmas.
December 26.Boxing Day
Because it struck on the 26th of December 2004. The 26th of December is called Boxing Day in some countries.
On this day the Priests used to open the church's charity boxes and distribute them among the poor, so this day is called Boxing Day.
There are many reasons why boxing is called the sweet science. This could be in reference to the sport's awesomeness.
The mat. In "Boxing" it's called the "Canvas", Wrestler's call it "The Mat". Hope this helped! :)