Google Books Ngram Viewer: prevalence of the word 'apocalypse' from 1500 to 2000.
More weird Google Books news has come to light. The Chronicle for Higher Education and the Harvard Gazette are reporting that Google Books and Harvard researchers are using computer algorithms to assess the rise and fall of certain words and ideas in our culture by crunching through all the words in 5.2 million digitized books, originally published between 1500 and 2008. This sample represents roughly 4 per cent of all the books ever published. The research leaders describe the prevalence of words over time as a cultural "fossil record." Their comments are littered with weird neologisms lifted from economics and the sciences. They say they are searching for the "cultural genome" using "culturnomics." You can test their work by typing in different words into a Google Books Ngram Viewer engine here - it will show you the frequency with which these words were used over time; but it doesn't indicate whether the meaning of the word changed. I typed in the word 'apocalypse' to check its use from 1500 to 2000. You can see the results in the image above.