Question: When was the On Giants' Shoulders author born?

Related documents: [0]  [DOC] Melvyn Bragg, Baron Bragg, {'1': ", '2': ", '3': ", '4': "} , (born 6 October 1939) is an English broadcaster, author and parliamentarian. He is best known for his work with ITV as editor and presenter of "The South Bank Show" (1978–2010), and for the Radio 4 discussion series "In Our Time". [END] 
[1]  [DOC] On Giants' Shoulders was written in 1998 by Melvyn Bragg. The book was assembled after a series of interviews Bragg had with current scientists about the world's greatest scientists such as Archimedes, Isaac Newton and Einstein. Bragg, who brands himself as a "non-scientist", conducted these interviews on BBC Radio 4 for other non-scientists. The book looks at the notion of being a "genius" and through discussions with 20th-century scientists explores the extent to which the great scientists of history were geniuses. [END]  
Answer: 6 October 1939
6 October 1939