![Editorial use only. No book cover usage.
Mandatory Credit: Photo by Moviestore/Shutterstock (1547430a)
Bridget Jones's Diary, Colin Firth
Film and Television](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/MFP3OH2DGNA2K2FVBVUPQ5LN2Y.jpg?smart=true&auth=f3baa315706ae56f7e9e4904c52e06614bc918d871f47f60c73c3ce866d94066&width=400&height=225)
Colin Firth as Mark Darcy in 'Bridget Jones's Diary'. Shutterstock
Colin Firth as Mark Darcy in 'Bridget Jones's Diary'. Shutterstock
From Fair Isle fishermen to Mark Darcy: how the ugly Christmas jumper became a festive mainstay
Tracing the history of this most garish of holiday traditions