@Grutness Fwiw, this seems to be a myth. There is no historical evidence for Napoleon or the French Revolution having changed the side of the road. Spain, which Napoleon controlled, didnt switch to right hand drive until 1918. Italy had no unified rule about it until the allies in WW1 enforced left hand drive for a while and Mussolini decreed right hand drive in 1923. There is however evidence from Pompeii and other archeological sites that the Romans kept to the right.
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@Grutness Fwiw, this seems to be a myth. There is no historical evidence for Napoleon or the French Revolution having changed the side of the road. Spain, which Napoleon controlled, didnt switch to right hand drive until 1918. Italy had no unified rule about it until the allies in WW1 enforced left hand drive for a while and Mussolini decreed right hand drive in 1923. There is however evidence from Pompeii and other archeological sites that the Romans kept to the right.