Oxford had enjoyed an influx of scientific inquiry and humanism – Roger Bacon (1220-92), John Wycliffe (1330-84), Desiderius Erasmus (1469-1536) and Sir Thomas More (1477-1535), all had their influence on the colleges. The present head of Christ Church for Locke was the Presbyterian John Owen (1616-83), a Puritan proponent of toleration and independence for Protestant sects and an earlier supporter and follower of Oliver Cromwell (1599-1658). (Owen travelled with Cromwell into his wars in Scotland and Ireland). Avoiding a career in theology and despising the dry Scholasticism (although the techniques and knowledge were of great use to his mind), Locke concentrated his studies on medical science at Oxford and later held teaching and diplomatic positions until meeting up with Lord Ashley Cooper in 1666 (later Earl of Shaftesbury). The position of a don was Locke’s preferred ambition and would have loved to live his whole life at Oxford – but events altered this path and he was illegally ejected on political grounds in 1684 from his studentship at Christ Church.