John Lilburne (1614?-August 29, 1657), also known as Freeborn John, was an Agitator in England before, during and after the English Civil Wars of 1642-1650. In his early life he was a Puritan, though towards the end of his life he became a Quaker. His works have been cited in opinions by the United States Supreme Court. Wikipedia
The definitive Wikipedia entry for John Lilburne. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/John_Lilburne