The first heavyweight world championships took place on April 17 of 1860 at
the Farnborough, England. The match was between the British champion Tom
Sayers and a popular American boxer known as John Camel Heenan. The fight
lasted for 120 minutes of continuous action, but paused in the 37th round
when the crowd rushed forward into the ring. After another five rounds of
bashing, the world championship ended with a draw - each fighter receiving
a
championship belt for world title.
That's a total of 42 rounds!
