On this day - 3 September

On September 3rd 1967 the Swedish swapped from driving on the left side of the road to the right. This event was known as "Dagen H" or "Högertrafikomläggningen". The change was made for various reasons, including the fact that many neighbouring countries drive on the right and many vehicles drive across these land borders annually. Despite this, the change was unpopular and 83% of people voted in a referendum in 1955 to continue driving on the left.

All non-essential traffic was banned from driving between 0100 and 0600. At 0450 any essential vehicles were to change the side of the road they were on, before stopping again and continuing their journey at 0500. Some towns including Malmö and Stockholm remained shut for longer to allow for work to alter junctions to take place.