Boston's Puritans looked askance at unorthodox religious ideas, and exiled or punished dissenters. During the Antinomian Controversy of 1636 to 1638 religious dissident leader Anne Hutchinson and Puritan clergyman John Wheelwright were both banished from the colony. Baptist minister Obadiah Holmes was imprisoned and publicly whipped in 1651 because of his religion and Henry Dunster, the first president of Harvard College during the 1640s–50s, was persecuted for espousing Baptist beliefs. By 1679, Boston Baptists were bold enough to open their own meetinghouse, which was promptly closed by colonial authorities. Expansion and innovation in practice and worship characterized the early Baptists despite the restrictions on their religious liberty. On June 1, 1660, Mary Dyer was hanged on Boston Common for repeatedly defying a law banning Quakers from being in the colony.