The Ngram Viewer will let you compare the use of 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 taking a look at the Ngram Viewer for those terms I can see that they begin to appear more regularly 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 below every chart produced by Ngram Viewer you will discover a list of books about each of your search terms. Those books are organized by date..
A 3rd part 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 mentioned in the video above, the Ngram Viewer can offer a great way to start a research study activity for students. Have them enter a couple of words then analyze the graph to recognize peaks and valleys in the frequency of the words usage. Then ask them to try to determine what would have caused those words to be used basically often at different durations in history.

Googles.
Ngram Viewer is a search tool that trainees can use to explore making use of words and names in books released between 1800 and 2019. The Ngram Viewer shows users a graph illustrating the 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 chart is based upon the books and regulars that are indexed in Google Books.

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

Ngram Viewer is a search tool that students can use to explore the use of words and names in books published in between 1800 and 2019. The Ngram Viewer shows users a graph highlighting 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 Ngram Viewer will let you compare the use of several words or names in one graph.