The period of the Indian war of 1676, known as King Philip's war, is one of the most interesting in the early history of the New England colonies. It was the first great test to which the New England Commonwealths were subjected, and it enforced upon them in blood and fire the necessity of a mutual policy and active cooperation. The lesson that union is strength was learned at that time and was never forgotten. New England, after the war, free from fear of any Indian attacks, was able to turn her attention to her own peaceful industrial and political development undisturbed.