‘The fair dates back more than 700 years. The consensus among historians is that the fair probably started just after 1284, when the Charter of King Edward I referred to city fairs in Nottingham. The Goose Fair was cancelled due to the bubonic plague in 1646 and again during the two World Wars in the 20th century. 1927 was the last year it was held in Old Market Square in Nottingham City Centre; it was then moved to the Forest Recreation Ground because of redevelopment of the Square.
The Goose Fair started as a trade event and enjoyed a reputation for its high-quality cheese, although it is now known for its rides and games. Its name is derived from the thousands of geese that were driven from Lincolnshire to be sold in Nottingham.
Originally, the fair was held on 21 September, but in 1752, with the change to the Gregorian calendar, it moved to early October. The duration of the fair was shortened from eight days to three days in the 1800s.’
– Info from Wikipedia