Europeans won military victories in New England, historians say, partly because they were divided among themselves. Indians were unwilling, too, to match the English tactic of massacring whole villages. But another, bigger part of the reason for the foreigners' triumph was that by the 1670s the newcomers outnumbered the natives. Groups like the Narragansett, which had been spared by the epidemic of 1616, were crushed by a smallpox epidemic in 1633. A third to half of the remaining Indians in New England died. The People of the First Light could avoid or adapt to European technology but not European disease. Their societies were destroyed by weapons their opponents could not control and did not even know they had.