Dozy Brits think December 25th is God's birthday, it emerged yesterday.
Our amusing lack of festive knowledge also leads us to believe we eat turkey on Christmas Day because there was a chicken shortage in the 1960s.
Other Yule tide faux pas include the belief that Boxing Day was introduced to allow bosses to reward hardworking staff with boxes of goodies.
The survey also revealed close to one in seven people think turkey is eaten on Christmas Day because Mary and Joseph were turkey farmers.
Brits unfamiliarity with all things festive emerged in a story carried out among 3,000 adults by Clinton Cards as part of their Best Ever Christmas Campaign.
Clintons Marketing Director Tim Fairs said: "While many of us are baffled about the background behind this season, at its heart most people see it as being about family.
"We work hard all year and this special time means that we can enjoy good food and a well-earned rest with the people we love the most."
The report also found millions of Brits have no idea why we celebrate Christmas and merely see it as an excuse to eat, drink and be merry.
One in five adults think Christmas is all about receiving lots of gifts, while almost half said it is a day to eat lots of food.
Almost one in ten believes the day was created simply to shower friends and family with gifts, while seven per cent believe it's all about giving people an extra day off work.
Just 41 per cent view Christmas as a religious event, with less than three quarters aware of the fact it marks the birth of Jesus Christ.
The poll of 2,000 Brits also revealed one in five had no idea Jesus was born in Bethlehem, while a fifth were also clueless when it came to the names of the three wise men - Gasper, Balthazar and Melchior.
And almost a quarter were unaware that 12 Days of Christmas represents the length of time is it said to have taken the three wise men to reach Bethlehem to present their gifts to Jesus.
Researchers also found that despite sitting down to enjoy a turkey dinner each Christmas, two thirds of Brits had no idea the bird is traditionally eaten on the day because it is big enough to feed a whole family.
Twenty-two per cent thought it was down to a chicken shortage in the 1600s, while seven per cent think it is due to Turkey being the first country to celebrate Christmas.
Even the type of tree decorated in millions of homes around the world each Christmas left many confused with one in five thinking oak trees were put up in our living rooms.
And just 40 per cent knew that Father Christmas originally wore a green suit, with a staggering 42 per cent believing he wore a red outfit just to fit in with the Coca Cola adverts.
Only 29 per cent of people were aware that it was actually changed to a red suit in Victorian Christmas cards.
FUNNY FESTIVE FACTS
- One in 10 Brits think Christmas was invented so that families could be showered with presents
- One in five people think the first day of Christmas is 1st December
- Seven per cent think we eat turkey because Turkey was the first country to celebrate Christmas
- One in 20 people named the BeeGees - Barry, Robin and Morris - as the three wise men
- One in 10 people thought the three wise men brought silver and bronze as gifts for baby Jesus
- Every one in 33 people thinks Jesus was born at the North Pole
- One in 10 Brits believe the 12 days of Christmas represent the amount of time Mary was in labour with Jesus
- One in 10 employees thought Boxing Day was introduced so they could have festive hampers from the boss
- Twelve per cent of Brits think Mary and Joseph are turkey traders which is why we eat it at Christmas
- Brits are clueless when it comes to the traditional colour of Santa's suit - one in 10 thought it was brown, while a third thought it was red
