Fluid Theory

The Greek philosopher ,Empedoes thought that each parent produces a fluid known as semen which arises contiguously from the various parts of the body and is  responsible for the production of an embryo in the uterus of the female.

Aristotle the Greek philosopher (384-322 BC)was of the opinion that the child was produced  by the mixing of semen of man and menstrual fluid during sexual intercourse .He gazed man's semen as a highly purified form of his blood.He considered the woman's menstrual fluid as female semen.