Conventional Pap Smear Cytology.
The Papanicolaou smear, also known as the Pap test is a screening test used in gynecology to detect premalignancy or malignacy in the ectocervix and thus used to prevent cervical cancer.
Georgios Papanikolaou was a Greek physician and was the first to describe a noninvasive technique in 1923 of gathering cellular debris from the lining of the vaginal tract to be examined on glass slides for signs of cervical cancer. Later in 1928, he introduced his low-cost test that became known as the Papanicolaou technique. However, it still faced with skepticism from the medical community.
Finally in 1941, after years of refinement and study, Papanicolaou and Traut, a gynecologist published a paper on the diagnostic value of vaginal smears.