Bengt Samuelsson enters the University of Lund to study medicine. He starts working in the laboratory of Sune K. Bergström.

Bengt Samulesson returns to Karolinska Institutet to serve as professor and chairman of the Department of Physiological Chemistry. He discovers several new prostagandins and later focuses his reseach on leukotrienes.

Bengt Ingemar Samuelsson is born to Kristina and Anders Samuelsson in Halmstad, Sweden in 1934.

Bengt Samuelsson is appointed professor of Medical Chemistry at the Royal Veterinary College in Stockholm (now Stockholm University).

Bengt Samuelsson serves as a visiting professor in Chemistry at Harvard University.

Bengt Samuelsson becomes an Assistant professor of Medical Chemistry at the Karolinska Institutet. He focuses his work on the transformation products of arachidonic acid.

Bengt Samuelsson attends the Karolinska Institutet in Stockholm to work in biochemistry in parallel with his medical education. He is mainly interested in cholesterol metabolism with an emphasis on reaction mechanisms. Samuelsson receives his Ph.D. in medical chemistry in 1960 and in medicine in 1961.

Bengt Samuelsson attends Harvard University as a research fellow in the Department of Chemistry.

Bengt Samuelsson marries Karin Bergstein. They have three children.

Between 1959 and 1962 Samuelsson collaborates with Sune Bergström and they are working on the structure of prostaglandins. Their work leads to the discovery of endoperoxides, thromboxanes and the leukotrienes.

Bengt I. Samuelsson, Sune K. Bergström and John R. Vane are awarded the Nobel Prize in Physiology or Medicine in 1982 for their discoveries concerning prostaglandins and related biologically active substances.