27 jul 1780 año - Lazzaro Spallanzani
Descripción:
 He proposed a theory of how reproduction in mammals worked with the semen and ovum, he  also interpreted how the process of digestion worked. Later on he was the first to perform a artificial fertilization. This was very important as this information is still used today to understand mammals. 
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fecha:
27 jul 1780 año
Ahora mismo
 ~ 245 years ago