It's the last day of class before Christmas, and so there is a festive mood in the air as Greg and Jem gather round the microphones to discuss some of the history of the season - from dates and Santa to lights and trees. In the 'What if', Greg is presented with a question about Father Christmas!Keep in touch with us on twitter at (@condensedhist and @historygems) or by email at condensedhistorygems@gmail.com!

And MERRY CHRISTMAS!