It is a window on the birth of England and a reminder of the often overlooked first King of all of Britain, Athelstan.

It was buried as Viking nobility fled from Yorkshire at a key moment in British history and more than a thousand years later it was discovered by two men with metal detectors in a field near Harrogate in North Yorkshire.

It is the greatest Viking hoard of treasure to be discovered in Britain for more than 150 years.

And now it's been cleaned and prepared for display in York and London - it has revealed its stories.