So on the one hand we have folklore passed down from generation to generation, and on the other we have a finding of no documentary evidence for it. But no evid

So on the one hand we have folklore passed down from generation to generation, and on the other we have a finding of no documentary evidence for it. But no evidence for much of any other explanation either. Not much to go on either way. In medieval times, the thinking could well have been "we have to favor the right-handed because the left hand is the tool of the devil."