Its roots, both as a spa and a communications and trading centre, go back to Roman times. It was just outside the town, on the plateau of Gergovia to the south, that the Gauls under the leadership of Vercingetorix won their only, albeit indecisive, victory against Julius C?sar's invading Romans. In the Middle Ages, the two towns of Clermont and Montferrand were divided by commercial and political rivalry and ruled respectively by a bishop and the count of Auvergne. Louis XIII united them administratively in 1630, but it was not until the rapid industrial expansion of the late nineteenth century that the two really became indistinguishable. Indeed, it was Clermont that took the ascendancy, relegating Montferrand to a suburban backwater.

Michelin came into being thanks to the inventions of Charles Mackintosh, the Scotsman of raincoat fame. His niece married Edouard Daubree, a Clermont sugar manufacturer, and brought with her some ideas about making rubber goods that she had learnt from her uncle. In 1889, the company became Michelin and Co, just in time to catch the development of the automobile and the World War I aircraft industry. The family ruled the town and employed 30,000 of its citizens until the early 1980s, when the industry went into decline. In the years since, the workforce has been halved, causing rippling unemployment throughout Clermont's economy. Many of those who have lost their jobs are Portuguese immigrants, imported over the last thirty years to fill the labour vacuum and well integrated with the local population.

As in many other traditional industrial towns hit by recession and changing global patterns of trade, Clermont has had to struggle to reorientate itself, turning to service industries and the creation of a university of 34,000 students. Nonetheless, many people have moved elsewhere in search of work, reducing the population by nearly a tenth. The town has changed physically, too, as many of the old factories have been demolished