Google’s Ngram Viewer tracks the appearances of words or phrases in written books. Sometimes it’s fun to review a word used in the past to see how it’s popularity changes over time.
Having been alive during the 1980’s I remember several words that were predominantly fads during that decade. The graph clearly shows the emergence of the fad phase for rad during the 80’s. Those well versed in the era will remember a movie of the same name that focused on the BMX phenomenon of the same generation. I’ll drop the trailer below the graph in case you’re interested in what passed for a movie back then.