What is the largest breed of pit bulls?

The American pitbull is the largest and heaviest breed of pitbull they usually weigh between 35 to 60 pounds.

you get a pit bull mix.

History states late 1800s.

Pretty much, but like another poster said, it's harder to train terriers than most other breeds, as they are stubborn and hardheaded. Very intelligent, though, and pitties, when raised lovingly, are...

the original, original, bull breed was the bull and terrier, they no longer exist. they where like a mastiff breed with a terrier/bulldog. they were supposedly very aggressive. so to answer your...