Three Ngrams
One word in three Stanford records at once: what the campus paper printed, what the dissertations were titled, and what the classes said they taught. Each line is scaled to its own peak, so you see when each one used the word most, not which used it more.
The word in each source, as a percent of that source's own peak
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Each source is drawn as a percent of its own highest period. The Daily: articles per 10,000 containing the word, every five years, counted live from its archive (1910–2014) and stanforddaily.com (2015 on, scaled to the scans); its search matches word forms (genes, genetic) and names (Gene Kelly). Thesis titles: titles per 1,000, every five years, from every Stanford thesis in SearchWorks; a word also counts its plural. Course bulletins: courses per 1,000 whose title or description uses the exact word, each academic year from 2009–10 (the first ExploreCourses keeps). The three match words differently, so compare the shapes, not the heights. Hover or tap the chart to read the numbers; each source's own page links to the articles, titles and courses behind them.