Cubism, the Word

Using the Google Books Ngram Viewer

cubism graphed on the Google Books Ngram Viewer
cubism graphed on the Google Books Ngram Viewer

According to Google Labs' fairly new "Books Ngam Viewer," which tracks usage of words and phrases in all the books Google has scanned dating from 1800 through 2000, the use of the word "Cubism" (and closely varients) peaked in 1960.