Places and anniversaries can function as ‘sites of memory’, but three major Newtonian locations – Cambridge, Grantham and London – were also sites of conflict that resonated with wider debates about the nature of genius and the conduct of science. Ritualized celebrations at appropriate times and places helped not only to establish Newton's status as a local hero, national exemplar and scientific genius, but also to promote various versions of national and scientific heritage. By examining changes in how Newton has been commemorated, this paper explores ways in which different protagonists have contributed to and benefited from legendary visions of Newton.