With the scanned sortiment of scanned google books, "culturomics" managed to gain new mathematical knowledge about the history of words:
"War has a dramatic effect on the birth and death of words. The figure above depicts variability in how fast words change in popularity: a high variability over a short period of time is likely due to an influx of new words. Comparing the English and Spanish language corpuses during WWII, the researchers found English shakes up while Spanish remains relatively stable. The pattern reflects the relative importance of the war in English and Spanish-speaking parts of the world. Analyses of English through the 19th and 20th centuries also revealed high variability during the Civil War, WWI, and the Vietnam War."