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

full_context: Document 1: A Study of British Genius: There is an introduction and then the books delves into chapters on race and nationality, social class, heredity, childhood, marriage, life, pathology, stature, pigments, other miscellaneous things, and a conclusion. Ellis begins by saying people had not been able to have an efficient comprehensive study of men and women before him. The "Dictionary of National Biography" had a large collection of descriptions of people, but it had been too unwieldy and large to be useful. Ellis then analyzes people and their natural tendencies to contribute successfully to society, but people born into royalty are excluded. They cannot be included with the rest of the population because they were given advantages at a young age that others were not given. The term genius is used to describe intelligence every time the word is mentioned throughout the text. He examines the concept of tracking down the origin of intelligence to a specific region of the world. In order to do this, each person must be asked about their birthplace to create an accurate record. The best way of asking though, is to ask each grandparent where they came from. In the chapter on social class, to determine the social class of people most precisely, it was best to ask the fathers what their occupation was. The occupation had to be considered at the time when the kid was born.
Document 2: Kenneth Clark: Kenneth Mackenzie Clark, Baron Clark, (13 July 1903 – 21 May 1983) was a British art historian, museum director, and broadcaster. After running two important art galleries in the 1930s and 1940s, he came to wider public notice on television, presenting a succession of series about the arts during the 1950s and 1960s, culminating in the series "Civilisation" in 1969.
Document 3: Super Science Friends: Super Science Friends is an animated series created by Brett Jubinville and broadcast worldwide on YouTube and on Cartoon Hangover's VRV Channel in the United States. The series revolves around a group of super-powered scientists, including Albert Einstein, Nikola Tesla, Marie Curie, Charles Darwin, Sigmund Freud and Tapputi, who are brought together by Winston Churchill to travel through time fighting super-villains. The pilot episode Episode 1: The Phantom Premise was successfully Kickstarted in late 2014, and aired on YouTube in 2016. In 2017, Neil deGrasse Tyson joined the cast for Episode 3: Nobel of the Ball as the MC of the Nobel Prize Awards.
Document 4: Peter Snow: Peter Snow, CBE (born 20 April 1938) is a British radio and television presenter and historian, best known as an analyst of election results. He presented the 2016 BBC series, "Trainspotting Live", along with co-presenters Dr Hannah Fry and Dick Strawbridge.
Document 5: Surely You're Joking, Mr. Feynman!: "Surely You're Joking, Mr. Feynman!": Adventures of a Curious Character is an edited collection of reminiscences by the Nobel Prize-winning physicist Richard Feynman. The book, released in 1985, covers a variety of instances in Feynman's life. Some are lighthearted in tone, such as his fascination with safe-cracking, studying various languages, participating with groups of people who share different interests (such as biology or philosophy), and ventures into art and samba music. Others cover more serious material, including his work on the Manhattan Project (during which his first wife Arline Greenbaum died of tuberculosis) and his critique of the science education system in Brazil. The section "Monster Minds" describes his slightly nervous presentation of his graduate work on the Wheeler–Feynman absorber theory in front of Albert Einstein, Wolfgang Pauli and other major figures of the time.
Document 6: Higher Superstition: Higher Superstition: The Academic Left and Its Quarrels with Science is a 1994 book by biologist Paul R. Gross and mathematician Norman Levitt.
Document 7: Genius of Britain: Genius of Britain: The Scientists Who Changed the World is a five-part television documentary presented by leading British scientific figures, which charts the history of some of Britain's most important scientists and innovators.
Document 8: Melvyn Bragg: 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".
Document 9: Asa Briggs: Asa Briggs, Baron Briggs (7 May 1921 – 15 March 2016) was an English historian. He was a leading specialist on the Victorian era, and the foremost historian of broadcasting in Britain. He was made a life peer in 1976.
Document 10: Andrew Marr: Andrew William Stevenson Marr (born 31 July 1959) is a British political commentator and television presenter. Beginning his career as a political commentator, he subsequently edited "The Independent" (1996–98), and was political editor of BBC News (2000–05). He began hosting a political programme—"Sunday AM", now called "The Andrew Marr Show"—on Sunday mornings on BBC One from September 2005. In 2002, Marr took over as host of BBC Radio 4's long-running "Start the Week" Monday morning discussion programme .
Document 11: The Giant, O'Brien: The Giant, O'Brien is a novel by Hilary Mantel, published in 1998. It is a fictionalized account of Irish giant Charles Byrne (O'Brien) and Scottish surgeon John Hunter.
Document 12: John Betjeman: Sir John Betjeman, CBE ( ; 28 August 190619 May 1984) was an English poet, writer, and broadcaster who described himself in "Who's Who" as a "poet and hack". He was Poet Laureate of the United Kingdom from 1972 until his death.
Document 13: The Man Who Knew Infinity: The Man Who Knew Infinity: A Life of the Genius Ramanujan is a biography of the Indian mathematician Srinivasa Ramanujan, written in 1991 by Robert Kanigel and published by Washington Square Press. The book gives a detailed account of his upbringing in India, his mathematical achievements, and his mathematical collaboration with English mathematician G. H. Hardy. The book also reviews the life of Hardy and the academic culture of Cambridge University during the early twentieth century.
Document 14: Bob Harris (radio): Robert Brinley Joseph Harris, OBE (born 11 April 1946), known as "'Whispering Bob Harris", is an English music presenter known for being a host of the BBC2 music programme "The Old Grey Whistle Test", and as a co-founder of the listings magazine "Time Out".
Document 15: On Giants' Shoulders: 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.
ground_truth: 6 October 1939