Related by context. Frequent words. (Click for all words.) 71 Nicolaus Copernicus 58 Tycho Brahe 56 Johannes Kepler 55 Carl Linnaeus 55 Copernicus 54 heliocentric 53 Galileo Galilei 53 Lisa Gherardini 53 Pope Leo XIII 52 Edwin Hubble 51 Gregor Mendel 51 classical antiquity 51 Matteo Ricci 51 Clyde Tombaugh 51 Giorgio Vasari 51 Ötzi 50 Cathars 50 Roger Penrose 50 planet Uranus 50 Galilei 49 Claude Levi Strauss 49 Paul Dirac 49 physicist Albert Einstein 49 San Giovanni Rotondo 49 Ptolemaic 49 astronomical telescope 49 Paracelsus 49 philologist 49 Gödel 49 Antonio Gramsci 49 Galileo telescope 49 astronomer Edwin 49 fourteenth century 49 Henri IV 49 Charles Babbage 48 thirteenth century 48 Thomas Malthus 48 Inca Empire 48 Jesuit missionaries 48 Himiko 48 Küng 48 Rene Descartes 48 Vladimir Ilyich Lenin 48 Eadgyth 48 Ludwig Wittgenstein 48 Niels Bohr 48 Nazi dictator 47 Josiah Wedgwood 47 fifteenth century 47 Sergei Korolyov 47 Blaise Pascal 47 Vikram Sarabhai 47 André Breton 47 Pierre Curie 47 Czeslaw Milosz 47 Lomonosov 47 Kitov 47 Leo XIII 47 VI Lenin 47 King Sejong 47 Cosmologists 47 Jesuit missionary 47 Pope Pius IX 47 Consolmagno 47 Yuan Dynasty 47 Leibniz 46 Anghiari 46 Oetzi 46 God Particle 46 Vatican Observatory 46 Heinrich Heine 46 interplanetary spacecraft 46 Irenaeus 46 Corot 46 astrolabe 46 Albrecht Dürer 46 astronomical observatory 46 cosmology 46 R. Buckminster Fuller 46 Linnaeus 46 Giovanni Battista 46 Teutonic Knights 46 Brahe 46 Giordano Bruno 46 Proudhon 46 sacred Scripture 46 Professor Hawking 46 geocentric 46 Pontificate 45 Galileo 45 Paul Tillich 45 #th century 45 Kriegstein 45 La Sapienza University 45 Romanov dynasty 45 E ELT 45 Maria Montessori 45 Richard Feynman 45 Fra Angelico 45 Ancient Roman 45 Lateran