http://ngrams.googlelabs.com/graph?content=PROLOG%2CLISP%2CFORTRAN%2CCOBOL%2CJAVA%2CC%2B%2B&year_start=1940&year_end=2008&corpus=0&smoothing=3 http://ngrams.goo

http://ngrams.googlelabs.com/graph?content=PROLOG%2CLISP%2CFORTRAN%2CCOBOL%2CJAVA%2CC%2B%2B&year_start=1940&year_end=2008&corpus=0&smoothing=3 http://ngrams.googlelabs.com/graph?content=PROLOG%2CLISP%2CF... poorly formed google ngram query is poorly formed.