AHC: Earlier Bubonic Plague

What would it take for the Bubonic plague to strike Europe Immediately after Roman times or before 1347.

And could it accelerate industrialization?
 
What would it take for the Bubonic plague to strike Europe Immediately after Roman times or before 1347.

And could it accelerate industrialization?
OTL?

See Justinian's plague, which I believe is thought to be Bubonic. IIRC up until last week or so, I believe there was more evidence to believe that Justinian's plague was Bubonic than the Black Death.
 
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