I'd like to learn more about my ancestry, and the Celtics?

If you really do trace your ancestry back, you will find that after only a few generations you are related to almost everyone. This is so because the number of grandparents doubles with each generation you go back. (2,4,8,16,32) At 12 generations back, you are related to 8142 different families, and go back one more and it 16,384 families. Interestingly, you are equally related to all of these 16,384 families, and all their decedents (which makes you a cousin of everyone you see). Certainly, every person in the British Isles is related to you, provided you go back far enough.