Francis Bacon
(1561-1620)

Hobbes
(1588-1679)

Spencer
(1820-1908)

Wundt
(1832-1920)

Herodoto
(siglo V a.c.)

Boucher de Perther
(1834)

Sir John Lobbock
(1864)

Carlos Linneo
(1750)

Charles Darwin
(1857)

Eduard B. Tylor
(1865)

Henry L. Morgan
(1818-1881)

Voltaire
(1694-1778)

Meiners

Klemm

Aristoteles
(384 a.c.- 322 a.c.)