(n.) Any unfortunate event that closely resembles a prior one, that could have been avoided had people payed attention to history.
The Conservative governments' idea to re-introduce poll tax in the 80s was history repeating itself, as the peasants revolted as they did over 600 years before. Only now, they had workers' unions and a mortgage.
Method of thinking, manner of drawing ones premises.
One was a left-leaning Atheist, the other was a wealthy Catholic minister with a good edication. They had different premises but held a mutual respect because they were from the same school of thought.