although there are similarites between todays jews and the samaritans. orthodoxy is based on talmudic judaism wich came about from mishnaic times wich itself came from the reforms of Ezra and his sanhedrin when they came from babylonis. it was much different from previous Israel , for instance the prayers as we have today were not part of ancient Israel nor the way festivals,today's calendar , and many other practises as we have today. so Ezra was the fisrt reformist , maybe in more organized ways and more orthodox ways , but nevertheless he was a reformist.
Roadside bomb kills five border officers in western Iraq (AP)
from the article: Ancient Samaritan sect marks Passover sacrifice near Nablus