As part of the Today programme's Mass Observation guest edit, the Today programme's Nicola Stanbridge looks at how people have celebrated Christmas through the generations, since the project began.

The Mass Observation Archive is kept at the University of Sussex and it is 75 years to the day since the researchers began recruiting people to keep diaries of their day to day experiences.

The collection now provides us with a unique social history of Britain - before, during and after war, people at work and play.

A woman described the "Murkey" - one example of the ingenuity that made up for the lack of turkey during the Second World War: "If you cook a joint like you would a turkey... that means you stuff it with sausage meat and stuffing and have it with bread sauce and whatnot."

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