The Michelin company began producing travel guides in 1900, starting with a guide to France that was handed out to motorists for free. Road maps followed within a decade. The books and maps enticed drivers to explore their country, making detours to appealing restaurants and staying somewhere overnight to lengthen their travels – a deft move to encourage longer journeys by car, which, in turn, meant bigger tyre sales.Anita Isalska (BBC)