More recently, David Leech has argued that while Levitin makes some important points "it would be a mistake to assume that the category of Cambridge Platonism is a retroprojection of nineteenth century historiography. This is because earlier practices of referring to a group of primarily Cambridge-based ‘Platonists’, invariably including Ralph Cudworth (1617–88) and Henry More (1614-87), usually Benjamin Whichcote (1609–83), and (more variably) a number of other key figures, can be traced back at least to the 1730s in continental Europe, and still earlier in English texts."