I am looking at two main countries affected by the famine: Ireland and France, but mostly at the latter.
Without the incentive of the lack of food, would there have necesarily been a revolution? Would have Nap III got in power, or would he have not (no Prusso-french war, later german unification?)
And I can guess that Bosto would not become an irish town and relations between england and ireland would be slightly better...
Is there any expert in this time era which could explain how a non-famine could have had affected Europe?