Alfred Kinsey
hij/hem1894 – 1956

Photo credits
Kinsey, A., Pomeroy, W., and Martin, C. (1948). Sexual Behavior in the Human Male. Philadelphia: W.B. Saunders; Copyright © 2017, The Trustees of Indiana University on behalf of the Kinsey Institute.
The Kinsey scale, originally published in Sexual Behavior in the Human Male (1948) by Alfred Kinsey.

American scientist Alfred Kinsey was famous for his research on human sexuality. He showed that sexuality is not binary and fixed but that there are gradations between “exclusively heterosexual” and “exclusively homosexual.”
Photo credits
Kinsey, A., Pomeroy, W., and Martin, C. (1948). Sexual Behavior in the Human Male. Philadelphia: W.B. Saunders; Copyright © 2017, The Trustees of Indiana University on behalf of the Kinsey Institute.
The Kinsey scale, originally published in Sexual Behavior in the Human Male (1948) by Alfred Kinsey.