The iconic Mars bar is celebrating its 90th birthday – so here are some nostalgic images dating back to the sweet treat's humble beginnings.
From its creation in a confectionery factory in Slough in 1932, Mars has grown into a chocolate giant, with more than 30 billion Mars bars sold over the last nine decades.
The caramel and nougat bar, which is coated in milk chocolate, was created by American businessman Forrest Edward Mars Sr., and was advertised with the popular slogan, “A Mars a day helps you work, rest and play”.