Thanks. I was going to ask about long book (or film etc) projects like that. Some dictionaries and encyclopedias took decades to finish. The "Deutsches Wörterbuch" by the Brothers Grimm was started in 1838 and it got finished only in 1961, long after their death.
Unlike most of the list items or a dictionary, Knuth’s work is an ongoing personal creative process rather than an independent mechanism or a collection of data.