I mean, grain of salt and everything, but book-readers today might be more familiar w the concept of oligarchy than at any time since the Jacksonian era
https://books.google.com/ngrams/graph?content=Oligarchy&year_start=1800&year_end=2022&corpus=en&smoothing=3&case_insensitive=false
https://books.google.com/ngrams/graph?content=Oligarchy&year_start=1800&year_end=2022&corpus=en&smoothing=3&case_insensitive=false
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