Francesco Redi Francesco Redi was a great scientific mind and a well accomplished poet and author. He revolutionized scientific ideas of his day with groundbreaking experiments and scientific beliefs. His main accomplishment was the disproving of spontaneous generation. This discovery shocked the scientific world of his day and led to more experiments by such scientists as Pasteur and Spallazani. Francesco Redi was born in Arezzo, Italy on February 18th 1626. He got a degree in medicine and became a tutor for the Colonna family of Rome for five years. He then became a physician for the Dukes Ferninand II and Cosimo III. He loved to write literary works in his free