James I warns religious dissenters within the Church of England.

The king tells them to conform to religious orthodoxy or face expulsion. One group, the Pilgrims, leave England for Holland in 1606 and then for America in 1620.* Another group, the Puritans remain in England and attempt to purify the church from within until leaving for American beginning in 1625.* John Adams later writes, “Our ancestors, the Puritans, were a most unpopular set of men; yet the world owes all the liberty it possesses to them.”