What's the Difference Between the Wamp and the Noag?

There were intruders that came through al silent. So there ar other they're actually other people, theyr ar ye indigenous people. But the intresting thing is, the people living there had been devastated by a plague from european settlers. It's essentially wiped out about 90 % of the population. And one of thm's clled samaset, who turns up and says, high and the sort of settlers like, oh, yous speak english.