John Bunyan is identified as the last of the Christian Humanists in this periodization. The Christian Humanist tradition, which combined classical learning with Christian faith, was particularly significant in the Renaissance and early modern periods. Bunyan's Pilgrim's Progress reflects this synthesis of humanist literary techniques with deep Christian themes. Oliver Cromwell was primarily a political leader rather than a literary humanist, John Milton represents a different strand of Puritan writing, and Richard Crashaw was a Metaphysical poet.