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 use to check out the use of words and names in books released between 1800 and 2019. The Ngram Viewer reveals users a graph showing the very first look of a word or name in literature and the frequency with which that word or name appears in literature considering that 1800. The graph is based upon the books and regulars that are indexed in Google Books.

The Ngram Viewer will let you compare using several words or names in one graph. The example that I give up 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 often once again in the 1960s..
Ngram Viewer is based upon books indexed in Google Books. That is why listed below every chart produced by Ngram Viewer you will discover a list of books about each of your search terms. Those books are set up by date..
A third component of Ngram Viewer to note is that it deals 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 offer an excellent way to start a research study activity for trainees. Have them get in a few words then analyze the graph to identify peaks and valleys in the frequency of the words usage. Ask them to attempt to identify what would have caused those words to be utilized more or less often at various periods in history.

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