Ngram Viewer is a search tool that students can use to explore the usage of words and names in books released in between 1800 and 2019. The Ngram Viewer reveals users a chart showing the first appearance of a word or name in literature and the frequency with which that word or name appears in literature given that 1800. The Ngram Viewer will let you compare the use of multiple words or names in one chart.

The Ngram Viewer will let you compare using several words or names in one chart. The example that I provide in this video is to compare using the terms “National Parks,” “National Forests,” and “National Forest Service.” By looking at the Ngram Viewer for those terms I can see that they begin to appear more frequently around 1890, have a lull in the 1940s and 1950s, and then appear more regularly again in the 1960s..
Ngram Viewer is based on books indexed in Google Books. That is why below every graph created by Ngram Viewer you will discover a list of books about each of your search terms. Those books are organized by date..
A 3rd element of Ngram Viewer to note is that it works with several languages including English, French, Chinese, German, Italian, Russian, Hebrew, and Spanish..

Applications for Education.
As I pointed out in the video above, the Ngram Viewer can provide an excellent way to start a research activity for students. Have them go into a few words then analyze the chart to determine peaks and valleys in the frequency of the words use. Ask them to attempt to identify what would have caused those words to be used more or less frequently at various durations in history.

By the way, the book that I pointed out in the video is That Wild Country by Mark Kenyon..

Googles.
Ngram Viewer is a search tool that students can utilize to explore making use of words and names in books published between 1800 and 2019. The Ngram Viewer shows users a graph showing the first look of a word or name in literature and the frequency with which that word or name appears in literature since 1800. The chart is based on the books and regulars that are indexed in Google Books.