It goes to show that every generation has to internalize the painful way key facts about what is good and what is bad for society, even if history provides more than enough learnings for free.
NB This was ~45 years ago - I doubt such things would be tolerated these days. :-)
Mind you, the fact that it was events on the Isthmus of Panama that were one of the main causes of the union is fairly interesting:
The history curriculum I was taught in school was terribly boring and politicised. Other than the mandatory WW2 coverage, the _only_ other topics we studied were the horribleness of European colonisation, like Gandhi and Apartheid, ect… I was rather surprised to grow up and find out how interesting the topic actually was.
Knowing the rough order of events (as per the flow of a story) is important, as is the relative timespan, but a lot of history schooling puts too much emphasis on knowing the exact dates of certain events, which I think really subtracts the experience for many.