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Lazzaro Spallanzani

1729 - 1799

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Lazzaro Spallanzani (Italian pronunciation: [ˈladdzaro spallanˈtsani]; 12 January 1729 – 11 February 1799) was an Italian Catholic priest (for which he was nicknamed Abbé Spallanzani), biologist and physiologist who made important contributions to the experimental study of bodily functions, animal reproduction, and animal echolocation. His research on biogenesis paved the way for the downfall of the theory of spontaneous generation, a prevailing idea at the time that organisms develop from inanimate matters, though the final death blow to the idea was dealt by French scientist Louis Pasteur a century later. His most important works were summed up in his book Experiencias Para Servir a La Historia de La Generación De Animales y Plantas (Experiences to Serve to the History of the Generation of Animals and Plants), published in 1786. Read more on Wikipedia

Since 2007, the English Wikipedia page of Lazzaro Spallanzani has received more than 398,713 page views. His biography is available in 39 different languages on Wikipedia. Lazzaro Spallanzani is the 37th most popular biologist (down from 30th in 2019), the 601st most popular biography from Italy (down from 504th in 2019) and the most popular Italian Biologist.

Lazzaro Spallanzani is most famous for his work in the field of reproductive biology. He is credited with discovering the role of seminal fluid in reproduction.

Memorability Metrics

  • 400k

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  • 66.61

    Historical Popularity Index (HPI)

  • 39

    Languages Editions (L)

  • 7.01

    Effective Languages (L*)

  • 2.69

    Coefficient of Variation (CV)

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Among biologists, Lazzaro Spallanzani ranks 37 out of 841Before him are Charles Richet, Theodor Schwann, Yoshinori Ohsumi, Harald zur Hausen, Albrecht Kossel, and Karl von Frisch. After him are Christian de Duve, Françoise Barré-Sinoussi, Ada Yonath, Richard Owen, Nikolaas Tinbergen, and René Antoine Ferchault de Réaumur.

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Among people born in 1729, Lazzaro Spallanzani ranks 6Before him are Catherine the Great, Edmund Burke, Gotthold Ephraim Lessing, Louis, Dauphin of France, and Moses Mendelssohn. After him are Louis Antoine de Bougainville, Maria Antonia Ferdinanda of Spain, Juliana Maria of Brunswick-Wolfenbüttel, Antonio Soler, Johann Daniel Titius, and Giuseppe Sarti. Among people deceased in 1799, Lazzaro Spallanzani ranks 8Before him are Qianlong Emperor, Pope Pius VI, Maria Gaetana Agnesi, Pierre Beaumarchais, Tipu Sultan, and Joseph Black. After him are Georg Christoph Lichtenberg, Heshen, Charles Theodore, Elector of Bavaria, Horace Bénédict de Saussure, Victoire of France, and Étienne-Louis Boullée.

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In Italy

Among people born in Italy, Lazzaro Spallanzani ranks 601 out of 4,668Before him are Pope Stephen I (200), Damocles (null), Pope Miltiades (250), Aldus Manutius (1449), Roberto Baggio (1967), and Baldassare Castiglione (1478). After him are Claudia Octavia (40), Saint Eustace (10), Olybrius (400), Frank Capra (1897), Libius Severus (420), and Bonaventura Cavalieri (1598).


Among biologists born in Italy, Lazzaro Spallanzani ranks 1After him are Ulisse Aldrovandi (1522), Gabriele Falloppio (1523), Giovanni Sartori (1924), Salvador Luria (1912), Mario Capecchi (1937), Mikhail Tsvet (1872), Renato Dulbecco (1914), Luigi Luca Cavalli-Sforza (1922), Odoardo Beccari (1843), Carlo Allioni (1728), and Giuseppe Acerbi (1773).