The very first sandwich was simply a piece of meat between two slices of bread - requested by none other than the Earl of Sandwich. But the meal has become so popular that this weekend there will be special celebrations to mark the 250th anniversary of the timeless lunchtime snack.
We find out what your favourite sandwich fillings are.
This weekend marks the 250th anniversary of the "invention" of the Sandwich. So what's your favourite filling, and why?
There are events taking place in the Kent town across the weekend.
According to the Sandwich Society, the snack, named after the Earl of Sandwich, could have ended up being called a "Portsmouth" as the Earl nearly took Portsmouth for his title.
The Royal Flying Corps was founded in Farnborough in 1912. A special air display will take place later to mark the anniversary.