The Pit Bull
Pit Bull History...
All pit bulls were created with similar cross-breeding between bulldogs and terriers, but each individual pit bull breed has a distinct history.
Companionship, aggression, and show are the three reasons for the pit bulls creation. In the early 1900's, pit bulls were left at home with the kids while the adults were out.
Since pit bulls have gotten a reputation for killing other animals and even people, the trust for babysitting has eradicated. Today pit bulls are used mainly for fighting.