Hey there! Do you have any dogs? I have a pit bull, shes 6 years old now I think
No.  I don't have a dog.  How is her temperment?
Hers is okay, shes had some anxiety issues and can be destructive to my belongings and house, and my other dog (husky) does not do this, so thats hard to deal with. I keep her seperated from everyone just incase, I dont want her to bit anyone
I don't know about all the different pitbull breeds, but I do know they were originally developed as fighting dogs.
Yes they were, there are so many different variations that fall under the words pit bull, because any dog that has the distinctive pit breed in it is considered a pit bull no matter how much. If it looks like one it is one. 
Yes.  The American Pit Bull Terrier, American Staffordshire Terrier, American Bully, and the American Bulldog, and Staffordshire Bull Terrier are all considered Pit Bulls.  So many!
Yes! Nice, I cant name them all haha. Mine is very strong, so I can see why they were used as fighting dogs, and I think a certain amount of that temperment runs in their blood, but I think a  good responsible owner can make a big difference in how that trait that was passed down comes out in each one
as "pit bulls" by shelters. Many of these breeds were originally developed as fighting dogs from crossbreeding bull-baiting dogs (used to hold the faces and heads of larger animals such as bulls) and terriers. After the use of dogs in blood sports was banned, such dogs were used as catch dogs in the United States for semi-wild cattle and hogs, to hunt and drive livestock, and as family companions. Despite dog fighting now being illegal in the United States, it still exists as an underground
its kind. Most hairless dogs do best with a buddy to accompany them because, like many dogs, Bolivian Hairless Dogs have little tolerance for being alone, so if you have intensive plans leaving the house for, let's say 9 – 15 hours or something like that, make sure your dog has a companion to insure separation anxiety does not occur. Do not let this dog develop small dog syndrome, where a dog believes it is the pack leader, which can cause behavioral issues.
Common health issues.