Sweden changed the entire country from left-hand to right-hand driving in a single morning in 1967 because nearly all neighbouring countries already drove on the right and most Swedish cars had left-side steering, making overtaking on its old roads dangerously difficult. | World News
Stockholm at the transition from left- to right-hand traffic, 3 September 1967, at 4:50 in the morning. Image Credits: Wikimedia Commons On 3 September 1967, Sweden carried out a major traffic reform. In an operation named “Dagen H”, the country changed traffic from the left side to the right side. Drivers woke up to a…