Puzzler Answer 1/31/97: Traffic In Sweden

Ray: This was sent to us by John Pitts via cartalk.com. In Sweden, on a weekday in 1967 at 5 AM all traffic in the whole country stopped. A few moments later it started up again and has never been the same since. What happened at 5 AM?

Here's the answer:

In 1967, Sweden changed the side of the road on which they drove.

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