I get "domino effect" for 1966 but this is an example of the exact phrase lagging behind the idea because the "falling domino" theory was put forward by Eisenhower in April 1954.
Similarly, 'Afrocentric' and 'New Right' appear in 1966 but the ideas behind them were decades old (DuBois in the 1890s for the former, Hayek in the 30s for the latter).
Many words are very transient and based on technology that quickly came and went. Brand names in many cases. Although this tends to happen more after my year (starting mid-70s maybe).
Similarly, 'Afrocentric' and 'New Right' appear in 1966 but the ideas behind them were decades old (DuBois in the 1890s for the former, Hayek in the 30s for the latter).
Many words are very transient and based on technology that quickly came and went. Brand names in many cases. Although this tends to happen more after my year (starting mid-70s maybe).
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