Some 76 countries and territories use left-hand traffic, and the practice is believed to have originated in ancient Rome to help defend against enemy attacks. Following is a transcript of the video.

It turned out to be a remarkable find; a Roman sword; a spatha dated to the 2nd-3rd century AD and rare in Britain. It is one of only eight in the country, most of these were recovered from Roman ...

But, of course, the stakes were a little higher for the average sword and sandals slinger ... gladiators weren’t simply celebrities of ancient Rome. Instead, they were that most rare of figures ...