Radio 2 Arts Programme
John Florance goes in search of the roots of Christmas as we know it today - just why do we celebrate it on 25 December?
Where does the tradition of having a Christmas tree originate? Helping him find the answers to these and other questions are historians Ronald Hutton and Steph Mastoris and musicians Andrew Parrott and Lucie Skeaping.
Producers Rosie Boulton and David Corser