The 800th blue plaque was unveiled today in Dorset Square.
It commemorates Sir Laurence Gomme, a historian, 'folklorist' and, rather fittingly, the man who pioneered this whole 'blue plaque' thing in the first place.
For a bit of a blue plaque Googlemaps goodness go here where someone's made a commendable start at tracking the lot of them (13 down, 787 to go).