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The Medieval Origin of Driving on the Left (or Right) Side of the Road

The Medieval Origin of Driving on the Left (or Right) Side of the Road

While most countries drive on the right, approximately 35% of the world's population drives on the left, a distinction primarily rooted in historical practices from horse-drawn carriages and swordsmen.

The custom of driving on the left largely originates from medieval times when riders, predominantly right-handed, would keep to the left. This allowed their dominant right hand to be free to draw a sword for defense against oncoming traffic or potential attackers. When motor vehicles became widespread, many nations simply codified their existing 'rule of the road.' Conversely, Napoleon's military campaigns played a significant role in popularizing right-hand driving, as his armies moved on the right, a practice that subsequently spread across his conquered territories. North America also independently adopted right-hand driving, cementing the global division.
🔗 Left-hand traffic🔗 Left- & Right-hand Traffic

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