The constant onslaught of Christmas advertising from October onwards can start to wear a little thin as we enter December. Something inside us knows that however lovely the advert featuring a snowman giving a gift to a unicorn is - or whatever this years iteration is - it's not really what Christmas is all about.

We love Christmas and we hope yours is fun filled and spent with people you care about, but most of all we hope you'll remember how Christmas started. Read on to find out more and figure out what it all means.