The history of Luton dates back to ancient times, but it was established as a permanent settlement by the Anglo-Saxons in the 6th century. Originally named "Lea-tun," the town got its name from its location on the River Lea, meaning "settlement on the River Lea." The first written mentions of Luton date back to the 11th century, when it was recorded in the Domesday Book—the Great Survey of England commissioned by William the Conqueror. At that time, the town's population was about 700–800 people, and its economy was predominantly agricultural.
A key factor in Luton's development was its geographical location and its gradual transformation into a trading hub. From the 14th century, fairs were regularly held here, attracting artisans and merchants from the surrounding areas. The town grew slowly, remaining a typical market settlement where trades such as brewing, blacksmithing, and carpentry flourished. Its position in the Lea Valley, surrounded by fertile land, favored agriculture, which remained the backbone of the local economy for a long time.
Luton's true fame and economic rise were brought by the hat-making industry. Starting in the 17th century, by the 19th century, it had turned the town into the largest center for hat manufacturing in all of Great Britain. Straw hats were particularly prized and became Luton's signature product. This trade not only defined the city's economic development for many decades but also left a deep mark on its culture, giving the local football team the nickname "The Hatters." The Industrial Revolution eventually shifted the focus from agriculture to manufacturing, cementing Luton's status as an important industrial center.