The tendency of new generations of people to forget about past historical events due to said events not happening in their lifetime and no longer existing in living memory.

Intergenerational amnesia is the reason human beings fail to learn from history and repeat the same mistakes over and over again.
Olivia doesnt know who Hitler was? She's got a serious case of intergenerational amnesia!
by The Osseophile February 19, 2021
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