Oxford Street is a major road in the City of Westminster in the West End of London, running from Marble Arch to Tottenham Court Road via Oxford Circus. It is Europe's busiest shopping street, with around half a million daily visitors, and as of 2012 had approximately 300 shops. It is designated as part of the A40, a major road between London and Fishguard, though it is not signed as such, and traffic is regularly restricted to buses and taxis.

Oxford Street follows the route of a Roman road, the Via Trinobantina, which linked Calleva Atrebatum (near Silchester, Hampshire) with Camulodunum (now Colchester) via London and became one of the major routes in and out of the city.

Between the 12th century and 1782, it was variously known as Tyburn Road (after the River Tyburn that ran just to the south of it, and now flows underneath it), Uxbridge Road (this name is still used for the portion of the London-Oxford road between Shepherds Bush and Uxbridge), Worcester Road and Oxford Road. On Ralph Aggas' "Plan of London", published in the 16th century, the road is described partly as "The Waye to Uxbridge" followed by "Oxford Road", showing rural farmland where the junction of Oxford Street and Rathbone Place now is.

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