1926 - 2008
Henry Gustav Molaison (February 26, 1926 – December 2, 2008), known widely as H.M., was an American who had a bilateral medial temporal lobectomy to surgically resect the anterior two thirds of his hippocampi, parahippocampal cortices, entorhinal cortices, piriform cortices, and amygdalae in an attempt to cure his epilepsy. Although the surgery was partially successful in controlling his epilepsy, a severe side effect was that he became unable to form new memories. His unique case also helped define ethical standards in neurological research, emphasizing the need for patient consent and the consideration of long-term impacts of medical interventions. Read more on Wikipedia
Since 2007, the English Wikipedia page of Henry Molaison has received more than 1,380,340 page views. His biography is available in 21 different languages on Wikipedia (up from 20 in 2019). Henry Molaison is the 1,151st most popular religious figure (down from 1,053rd in 2019), the 2,018th most popular biography from United States (down from 1,953rd in 2019) and the 12th most popular American Religious Figure.
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Historical Popularity Index (HPI)
Languages Editions (L)
Effective Languages (L*)
Coefficient of Variation (CV)
Among religious figures, Henry Molaison ranks 1,151 out of 2,238. Before him are Nicholas Mystikos, Simon of Trent, Abu Darda, Fatimah bint Musa, Pavle, Serbian Patriarch, and Keith O'Brien. After him are Giuseppe Siri, Nicholas of Japan, Pietro Gasparri, Nilus the Younger, Moses the Black, and Robert Estienne.
852 - 925
HPI: 57.27
Rank: 1,145
1472 - 1475
HPI: 57.27
Rank: 1,146
580 - 653
HPI: 57.25
Rank: 1,147
790 - 816
HPI: 57.24
Rank: 1,148
1914 - 2009
HPI: 57.24
Rank: 1,149
1938 - 2018
HPI: 57.22
Rank: 1,150
1926 - 2008
HPI: 57.22
Rank: 1,151
1906 - 1989
HPI: 57.19
Rank: 1,152
1836 - 1912
HPI: 57.19
Rank: 1,153
1852 - 1934
HPI: 57.17
Rank: 1,154
910 - 1004
HPI: 57.16
Rank: 1,155
332 - 407
HPI: 57.14
Rank: 1,156
1503 - 1559
HPI: 57.14
Rank: 1,157
Among people born in 1926, Henry Molaison ranks 112. Before him are Hugo Banzer, Leopoldo Calvo-Sotelo, Nuon Chea, Zinaida Portnova, Galina Vishnevskaya, and Efraín Ríos Montt. After him are Yevgeny Leonov, John Derek, Raul Hilberg, Aaron Klug, Per Wahlöö, and Nina Kulagina. Among people deceased in 2008, Henry Molaison ranks 69. Before him are Marcial Maciel, Jean-Marie Balestre, Muslim Magomayev, Bo Diddley, Leopoldo Calvo-Sotelo, and Bettie Page. After him are Jerry Reed, Joseph M. Juran, Cyd Charisse, Rajko Mitić, Estelle Getty, and Khertek Anchimaa-Toka.
1926 - 2002
HPI: 57.46
Rank: 106
1926 - 2008
HPI: 57.44
Rank: 107
1926 - 2019
HPI: 57.42
Rank: 108
1926 - 1944
HPI: 57.38
Rank: 109
1926 - 2012
HPI: 57.31
Rank: 110
1926 - 2018
HPI: 57.29
Rank: 111
1926 - 2008
HPI: 57.22
Rank: 112
1926 - 1994
HPI: 57.15
Rank: 113
1926 - 1998
HPI: 56.97
Rank: 114
1926 - 2007
HPI: 56.88
Rank: 115
1926 - 2018
HPI: 56.83
Rank: 116
1926 - 1975
HPI: 56.76
Rank: 117
1926 - 1990
HPI: 56.74
Rank: 118
1920 - 2008
HPI: 57.56
Rank: 63
1921 - 2008
HPI: 57.55
Rank: 64
1942 - 2008
HPI: 57.50
Rank: 65
1928 - 2008
HPI: 57.45
Rank: 66
1926 - 2008
HPI: 57.44
Rank: 67
1923 - 2008
HPI: 57.40
Rank: 68
1926 - 2008
HPI: 57.22
Rank: 69
1937 - 2008
HPI: 57.17
Rank: 70
1904 - 2008
HPI: 56.97
Rank: 71
1922 - 2008
HPI: 56.90
Rank: 72
1922 - 2008
HPI: 56.58
Rank: 73
1923 - 2008
HPI: 56.29
Rank: 74
1912 - 2008
HPI: 56.28
Rank: 75
Among people born in United States, Henry Molaison ranks 2,018 out of 18,182. Before him are Jamie Foxx (1967), Ben Carson (1951), Lewis Mumford (1895), Julia Ann (1969), Howard Martin Temin (1934), and James Whitmore (1921). After him are Blythe Danner (1943), Elizabeth Bishop (1911), Ruth Gordon (1896), Robert Trujillo (1964), Ashley Judd (1968), and Jesse Livermore (1877).
1967 - Present
HPI: 57.23
Rank: 2,012
1951 - Present
HPI: 57.23
Rank: 2,013
1895 - 1990
HPI: 57.22
Rank: 2,014
1969 - Present
HPI: 57.22
Rank: 2,015
1934 - 1994
HPI: 57.22
Rank: 2,016
1921 - 2009
HPI: 57.22
Rank: 2,017
1926 - 2008
HPI: 57.22
Rank: 2,018
1943 - Present
HPI: 57.21
Rank: 2,019
1911 - 1979
HPI: 57.21
Rank: 2,020
1896 - 1985
HPI: 57.20
Rank: 2,021
1964 - Present
HPI: 57.20
Rank: 2,022
1968 - Present
HPI: 57.19
Rank: 2,023
1877 - 1940
HPI: 57.19
Rank: 2,024
Among religious figures born in United States, Henry Molaison ranks 12. Before him are John Mott (1865), Rose Kennedy (1890), William Miller (1782), Joseph Franklin Rutherford (1869), Lillian Asplund (1906), and Paul Marcinkus (1922). After him are Marie Laveau (1801), William M. Branham (1909), Raymond Franz (1922), Angelo Dundee (1921), David Wilkerson (1931), and William Levada (1936).
1865 - 1955
HPI: 62.09
Rank: 6
1890 - 1995
HPI: 59.91
Rank: 7
1782 - 1849
HPI: 59.57
Rank: 8
1869 - 1942
HPI: 59.38
Rank: 9
1906 - 2006
HPI: 58.66
Rank: 10
1922 - 2006
HPI: 57.44
Rank: 11
1926 - 2008
HPI: 57.22
Rank: 12
1801 - 1881
HPI: 56.77
Rank: 13
1909 - 1965
HPI: 55.57
Rank: 14
1922 - 2010
HPI: 55.50
Rank: 15
1921 - 2012
HPI: 55.05
Rank: 16
1931 - 2011
HPI: 53.75
Rank: 17
1936 - 2019
HPI: 53.67
Rank: 18