TIL that like most British colonies, Canada used to drive on the left side of the road. They abondonded this in the 1920s to facilitate traffic to and from the United States

Archaeological evidence suggests that the ancient Romans may have driven their carts and chariots on the left, and the practice seems to have carried over into parts of medieval Europe. The reasons for this are not entirely certain, but some believe it arose as a matter of safety. The majority of pe...