Answer:
There really is no Daddy of horses. Depending on who u talk to some people will say Arabian others Throughbred even some people say quarter horse or Morgan. The Arabian i say would probablly be close to being the founder of alot of the horse breeds to day like the Throughbred, Quarter Horse even Morgan and Saddlebred. What happend was there are different blood lines from the Arabian the Polish, English, Egyptian and many many more. Bask the most common Arabain was bred to almost anything so alot of the horses we have now have at least a tiny little bit of Bask.