On 08/12/05 01:01 ET, edmund said...
Its probably the same reason you drive on the
wrong side of the road. : )
Seven hundred years ago, everybody used the English system. In the Middle Ages you kept to the left for the simple reason that you never knew who you'd meet on the road in those days; you wanted to make sure that a stranger passed on the right so you could go for your sword in case he proved unfriendly.