Index Scores
Murray ranks the leading 4,000 innovators in several fields of human accomplishment from 800 BC to 1950. In each field Murray identifies a number of sources (leading encyclopedias, histories and surveys) providing information about the leading figures in the field. The rankings are made from information in these sources. A raw score is determined based on how many sources mention and on how much space in each source is devoted to a person. Then these raw scores are normalized so that the lowest score is 1 and the highest score is 100. The resulting scores are called "Index Scores".
The categories of human accomplishment where significant figures are ranked in the book are as follows: Astronomy, Biology, Chemistry, Earth Sciences, Physics, Mathematics, Medicine, Technology, Combined Sciences, Chinese Philosophy, Indian Philosophy, Western Philosophy, Western Music, Chinese Painting, Japanese Art, Western Art, Arabic Literature, Chinese Literature, Indian Literature, Japanese Literature, and Western Literature. The omission of several relative categories, including a broader Chinese art category or an Indian art category, are due to a lack of identifiable figures as most of the work is anonymous.
The following are some examples of the rankings found for individual categories.
Mathematics |
Index score |
Euler |
100 |
Newton |
89 |
Euclid |
83 |
Gauss |
81 |
Fermat |
72 |
Western philosophy |
Index score |
Aristotle |
100 |
Plato |
87 |
Kant |
74 |
Descartes |
51 |
Hegel |
46 |
Physics |
Index score |
Newton |
100 |
Einstein |
100 |
Rutherford |
88 |
Faraday |
86 |
Galileo |
83 |
|
Western music |
Index score |
Beethoven |
100 |
Mozart |
100 |
Bach |
87 |
Wagner |
80 |
Haydn |
56 |
Chinese literature |
Index score |
Du Fu |
100 |
Li Bai |
87 |
Bai Juyi |
86 |
Su Shi |
83 |
Han Yu |
80 |
Western art |
Index score |
Michelangelo |
100 |
Picasso |
77 |
Raphael |
73 |
da Vinci |
61 |
Titian |
60 |
|
Combined sciences |
Index score |
Newton |
100 |
Galileo |
89 |
Aristotle |
78 |
Kepler |
53 |
Lavoisier |
51 |
Western literature |
Index score |
Shakespeare |
100 |
Goethe |
81 |
Dante |
62 |
Virgil |
55 |
Homer |
54 |
Technology |
Index score |
Watt |
100 |
Edison |
100 |
Leonardo da Vinci |
60 |
Huygens |
51 |
Archimedes |
51 |
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