Rose,
Extraordinary site, I can't believe we haven't come across it previously since it's been on-line since 2003. I did find the organization a bit distracting - too many sidebars, etc - but it's a huge resource.
After a bit of digging, I find it is the work of Paul Halsall, a British medieval historian who did graduate studies at Fordham and is now back in the UK. I have seen other of his sites , done in conjunction with some courses that he taught at Fordham and elsewhere.
Nice find!
Many years,
Neil
_________________________
"One day all our ethnic traits ... will have disappeared. Time itself is seeing to this. And so we can not think of our communities as ethnic parishes, ... unless we wish to assure the death of our community."