Lazzaro Spallanzani
Italian priest, biologist and physiologist (1729-1799)
- Fame54.3
- Momentum1.2
- Scientists rank#116
Source-basedStable
- Fame54.3
- Momentum1.2
- Scientists rank#116
- Wikipedia6.2K
Lived 1729–1799, aged 70Italy
ItalySummary
Updated 2026-06-11
An 18th-century Italian priest who proved that life doesn't spring from thin air. His experiments on reproduction and biogenesis began dismantling spontaneous generation — the old belief that maggots and mice just appeared from dirt — though it took Pasteur another hundred years to bury it completely.
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Lazzaro Spallanzani was born on 12 January 1729 in Italy and became a Catholic priest, earning the nickname Abbé Spallanzani. He turned his attention to experimental biology and physiology, studying bodily functions, animal reproduction, and echolocation with a rigor uncommon for his era. His work on biogenesis directly challenged spontaneous generation, the reigning theory that living organisms arose from inanimate matter. In 1785 he published Expériences pour servir a l'histoire de la génération des animaux et des plantes, where he laid out experimental demonstrations of fertilisation betwee…
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Stable54.3
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Momentum1.2
Historical22.7
Source confidence60.0
Completeness70.0
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