1668 ⟶ Francesco Redi disproves spontaneous generation using fly maggots
Francesco Redi disproved spontaneous generation by showing t...
Year
1651
1668
1683
1768
1864
🥚 William Harvey's Conclusion on Animal Development
William Harvey concluded that all animals, including mammals, develop from eggs, and spontaneous generation of any animal from mud or excrement was an impossibility.⟶
BiologyEmbryologyWilliam HarveySpontaneous GenerationReproduction17th CenturyScientific RevolutionDevelopmentZoology
🪰 Francesco Redi disproves spontaneous generation using fly maggots
Francesco Redi disproved spontaneous generation by showing that fly maggots only appear on pieces of meat in jars if the jars are open to the air. Jars covered with cheesecloth contained no flies.⟶
Spontaneous GenerationFrancesco RediBiologyGerm Theory17th CenturyExperimentationItalyBiogenesisMicrobiology
Italy🦠 Leeuwenhoek Observes Bacteria
Anton van Leeuwenhoek observed bacteria. Leeuwenhoek's discoveries renew the question of spontaneous generation in microorganisms.⟶
MicrobiologyBacteriaLeeuwenhoekSpontaneous GenerationBiologyMicroscopyEarly Modern PeriodScientific DiscoveryGerm Theory
Netherlands🔬 Lazzaro Spallanzani Disproves Spontaneous Generation and Studies Reproduction
Lazzaro Spallanzani again disproved spontaneous generation by showing that no organisms grow in a rich broth if it is first heated (to kill any organisms) and allowed to cool in a stoppered flask. He also showed that fertilization in mammals requires an egg and semen.⟶
BiologySpontaneous GenerationLazzaro SpallanzaniGerm TheoryReproduction18th CenturyFertilization
Italy🧫 Pasteur Disproves Spontaneous Generation
Louis Pasteur disproved the spontaneous generation of cellular life.⟶
Spontaneous GenerationBiologyLouis PasteurMicrobiology19th Century ScienceGerm TheoryBiogenesisCell Theory
France