Question: The book Spinoza includes a foreword by a philosopher born in which year ?

Related documents: [0]  [DOC] Spinoza (1951; second edition 1962; third edition 1987) is a book about Baruch Spinoza by the English philosopher Stuart Hampshire. The work includes a foreword by the philosopher A. J. Ayer, while a new introduction was added to the 1987 edition. "Spinoza" has become a classic work about Spinoza and has received praise from philosophers. In 2005, "Spinoza", along with Hampshire's other writings on the philosopher, was incorporated into a single volume, published as "Spinoza and Spinozism". [END] 
[1]  [DOC] Sir Alfred Jules "Freddie" Ayer, FBA ( ; 29 October 1910 – 27 June 1989), usually cited as A. J. Ayer, was a British philosopher known for his promotion of logical positivism, particularly in his books "Language, Truth, and Logic" (1936) and "The Problem of Knowledge" (1956). [END]  
Answer: 1910
1910