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Martin, Engineer
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Experience:  i'm 41 and i never stopped studying and experimenting
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2000 years ago the accepted concept was that a man planted

Resolved Question:

2000 years ago the accepted concept was that a man planted a seed in a woman and it grew into a human. Today the accepted concept (Western) is that a man plants a seed in a woman and it fertilizes the woman's egg which grows into a human. When did this become the "accepted" concept.
Submitted: 8 years ago.
Category: General
Expert:  Martin replied 8 years ago.
HelloCustomer welcome to Just Answer.

As with all concepts and ideas, many appeared at a point of time to be forgotten, just to rediscovered later.

For example, even if this particular subject was mostly brought up in the 17th century it took root in the antiquity with the first autopsy of animal and human bodies.

A good book on the subject is:
The Ovary of Eve: Egg and Sperm and Preformation

If you want to learn about oldest mention of this, this is another great book, that probably cover the first documented discovery of the ovary and their function:
Customer: replied 8 years ago.
"When?" How about narrowing it down to a decade or two. It would also be helpful to know who made this momentus discovery - that negated centuries of accepted thinking.
Expert:  Martin replied 8 years ago.
Discovery of ovary in human definitively was around 335-280 BC, the time Herophilos lived (as if we say it was probably not before he was 20, it make it at between 315-280 BC).

As for the concept itself, i'm not sure this can be determined. it's something that was always in the air, there was never a moment as definitive as when Einstein postulated the general relativity. For exemple, even if a human egg is really small and required the invention of the microscope to be seen, it was possible to infer it from bird and reptile and the way plant sexual process work.

The concept of rocking the scientific world is something relatively new. Before organism like the British Royal Society and other of it's kind, there was no real authority and the scholar world was lot more democratic.
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