Number theorists have now finally managed to make sense of one of his more enigmatic statements, written just one year before his death in 1920. (scientificamerican.com)
It was drawn up a few years before his death. (rocketlawyer.com)
In 1984, a few years before his death from AIDS - related complications, Wagstaff sold his collection to the J. Paul Getty Museum. (thewadsworth.org)