<b>Why do the British drive on the left?</b> Given that most of the world drives on the right, this seems a fairly natural question for the French to ask of their neighbours across the Channel. The answer goes back to Roman times and is primarily due to most people being right-handed. Travelers wanted to protect themselves, so they kept left in order to only cross other travelers on the right side, which was their stronger hand for sword fighting. Photo: HausFrau23/Flickr