Cultural Observatory at the Harvard University's John A. Paulson School of Engineering and Applied Sciences is an interdisciplinary research institution that investigates digitized text corpuses containing about 4% of all books ever printed in English, including NYTimes, full Australian newspaper archives, etc., between 1800 and 2000. It was co-founded and co-directed by Erez Aiden and Jean-Baptiste Michel, whose prototype was instrumental in creating Google Ngram Viewer.