Mr Opper said: "People have been so generous. You start with a long list of what you want for an exhibition and are pretty chuffed when you get a third. Here we got pretty much everything we wanted. People realise London is a place where they can unveil objects to a world public." Mr Opper said the view of Hadrian had changed over the centuries and would do so again. "The first thing Hadrian did within days, if not hours, of becoming emperor was to withdraw the Roman army from Mesopotamia, modern-day Iraq. That means something to us now that it wouldn't havemeant even 20 years ago," he said.