spontaneous generation

from wikipedia
"From its first formulation by Aristotle in the 4th century BC it was an article of both common and learned belief, at least in Europe, that complex living organisms arose spontaneously from non-living matter - fleas and adult mice from dirty laundry and from piles of wheat, maggots and flies from rotting meat, aphids from drops of dew. Life, in short, came about by spontaneous generation, or abiogenesis. Holes began to be knocked in Aristotle's dictum by early biologists in the 18th century, but not until the meticulous experiments of Louis Pasteur in 1862 was it finally established that a truly sterile medium would remain forever sterile, and that complex living organisms come only from other complex living organisms. The "Law of Biogenesis", (omne vivum ex ovo or "all life from an egg") based on his work is now a cornerstone of modern biology. "

me: imagine from Aristotle hanggang 1862 ay ang paniwala ng tao ay life came from non-living matter at napatunayan nga ni Louis Pasteur na ito ay mali.