An exploratory thread by Zach Goldberg [1] where he discusses more words & expressions, and compares to other, broader trends.
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There's a lot of selection bias there. I bet if a similar chart was created for "civil rights", there'd be a peak in the 1960s.
Or maybe if the charts were normalized to the number of articles per year, the charts would look much less exponential. It's hard to say.
And actually, if you read #14, you see the twitter thread has a major issue - where it lacks data from the earlier years of the trends. That effectively renders it no more worthy than an anecdote.