The idea that maggots were produced by rotting meat is an example of what theory?

The idea that maggots were produce by rotting meat is an example of spontaneous generation. Spontaneous Generation is an old fashioned thought about the formation of a living organism without descent from similar organism. They thought that maggots could be produce from the body of dead fish or a flea could arise from a dust. This idea was coherently synthesized by Aristotle. He expanded the work about the appearance of organism. According to his theory, Living things comes from nonliving things because they contains Pneuma.