A less important point which needs to be made in this piece is that although the index of The God Delusion notes six references to Deism it provides no definition of the word ‘deism'. This enables Dawkins in his references to Deism to suggest that Deists are a miscellany of believers in this and that. The truth, which Dawkins ought to have learned before this book went to the printers, is that Deists believe in the existence of a God but not the God of any revelation. In fact the first notable public appearance of the notion of Deism was in the American Revolution.