The county promoted all its best bits when residents celebrated Lincolnshire Day. Pupils pulled on yellow while shops sampled the famous produce.
Lincolnshire Day was created a few years ago and is held on October 1 to mark the Lincolnshire Rising against Henry VIII.
The Lincolnshire Flag was flying high on the pole at North Kesteven District Council offices and outside William Alvey School in Sleaford.
Head teacher Stephen Tapley said: “We encouraged children over the last two weeks to talk about what it means to be a ‘Lincolnshire Yellow Belly’ and researched the interesting variety of stories about the origins of the term.”
The children decided which story they believed was the true origin and went to school wearing yellow.
Lincolnshire Co-operative food stores joined in too, hiding Lincolnshire Flags for customers to find and win food prizes. Stores in Ruskington, Metheringham, Heckington and Sleaford also had food tastings and games such as ‘Spin the Spud’. Trainee Manager at Metheringham, Kirsty Everington, said: “Our events went really well, they were timed to catch the kids leaving school and they loved it.
“The kids were getting really into the Spin the Spud game – some of them were just as chuffed to have won a potato as they would have been about a packet of Pipers crisps.”