How long have there been ideas about the spontaneous generation of organisms. What is the merit of Francesco Redi in this matter?

The performances persisted until the 19th century. But in the 17-18 centuries, scientists tried to prove the impossibility of spontaneous generation of life with the help of experiments. In the 17th century, Francesco Redi made experiments:
1. Raw meat in a closed pot.
2. Raw meat was opened in four vessels and covered with muslin in four vessels. Kiseya (stress on the letter “I”) is a light translucent cotton fabric. Result: meat fly larvae appeared in open vessels, but spontaneous generation did not occur in closed vessels.

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