The Ngram Viewer will let you compare making use of numerous words or names in one graph. The example that I give up this video is to compare making use of 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 after that appear more often again in the 1960s..
Ngram Viewer is based on books indexed in Google Books. That is why below every chart created by Ngram Viewer you will find a list of books about each of your search terms. Those books are arranged by date..
A 3rd element of Ngram Viewer to note is that it works with numerous languages including English, French, Chinese, German, Italian, Russian, Hebrew, and Spanish..

Ngram Viewer is a search tool that trainees can use to explore the use of words and names in books released in between 1800 and 2019. The Ngram Viewer shows users a chart illustrating the very first appearance 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 numerous words or names in one graph.

By the way, the book that I mentioned 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 released between 1800 and 2019. The Ngram Viewer shows users a graph showing the very 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 graph is based on the books and regulars that are indexed in Google Books.

Applications for Education.
As I pointed out in the video above, the Ngram Viewer can supply a good way to begin a research activity for students. Have them get in a few words then examine the chart to recognize peaks and valleys in the frequency of the words use. Ask them to attempt to determine what would have caused those words to be utilized more or less frequently at various durations in history.