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

Googles.
Ngram Viewer is a search tool that students can use to explore making use of words and names in books released in between 1800 and 2019. The Ngram Viewer reveals users a chart illustrating the very first look of a word or name in literature and the frequency with which that word or name appears in literature given that 1800. The graph is based on 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 provide in this video is to compare the use of the terms “National Parks,” “National Forests,” and “National Forest Service.” By taking a look at the Ngram Viewer for those terms I can see that they start to appear more often around 1890, have a lull in the 1940s and 1950s, and then appear more regularly once again in the 1960s..
Ngram Viewer is based upon books indexed in Google Books. That is why below every graph created by Ngram Viewer you will find a list of books about each of your search terms. Those books are organized by date..
A third element of Ngram Viewer to note is that it works with several languages consisting of English, French, Chinese, German, Italian, Russian, Hebrew, and Spanish..

Applications for Education.
As I discussed in the video above, the Ngram Viewer can offer an excellent way to start a research activity for students. Have them get in a few words then take a look at the chart to recognize peaks and valleys in the frequency of the words use. Ask them to attempt to identify what would have triggered those words to be utilized more or less frequently at various periods in history.

Ngram Viewer is a search tool that trainees can utilize to explore the use of words and names in books released between 1800 and 2019. The Ngram Viewer shows 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 given that 1800. The Ngram Viewer will let you compare the usage of several words or names in one graph.