Gertrude Elion receives the Nobel Prize in Physiology or Medicine with Sir James W. Blac and George H. Hitchings "for their discoveries of important principles for drug treatment".

Motivated by the death of her grandfather, who died of cancer, Gertrude Elion decides to enter the field of science. She apllies for Hunter College where she studies and graduates summa cum laude in chemistry.

Gertrude Elion works at Burroughs-Wellcome, while attending night school for her doctorate degree at Brooklyn Polytechnic Institute. After two years of long range commuting, unfortunately the university informs her that she must attend full-time. Elion decides that she doesn’t want to leave her day job at the laboratory.

Gertrude Elion works as research chemist at Johnson and Johnson until it is disbanded six months later her arrival.

Gertrude Elion teaches at New York Hospital School of Nursing. At that time finding a job in a laboratory is very difficult for women.

Gertrude Elion is awarded an honorary Ph.D from Polytechnic University of New York.

Gertrude Elion is appointed Head of the Department of Experimental Therapy for Burroughs Wellcome.

Unable to find a research job, Gertrude Elion works as a food analyst for the Quaker Maid Company, where she tests pickles and berries.

Gertrude Elion retires from Department Head from Burroughs Wellcome but remains there as a Scientist Emeritus and Consultant. Elion continues working almost full time at the lab, and oversees the adaptation of azidothymidine (AZT), which is the first drug used for treatment of AIDS.

Gertrude Elion works as a substitute high school teacher for two years in the New York City secondary schools, teaching chemistry, physics and general science while finishing work on her master's degree.

Alone as well as with Hitchings, Elion develops new drugs effective against leukemia, autoimmune disorders, urinary-tract infections, gout, malaria, and viral herpes using innovative research methods. Elion examines the difference between the biochemistry of normal human cells and those of cancer cells, bacteria, viruses, and other pathogens. Elion then formulate drugs that could kill or inhibit the reproduction of a particular pathogen, leaving the human host’s normal cells undamaged.

Gertrude Elion dies at the age of 81 in Chapel Hill, North Carolina.

Gertrude Elion works as consultant at chemotherapy study section of the U.S. Public Health Service.

Gertrude Elion works as Adjunct Professor in pharmacology and experimental medicine at Duke University from 1971 to 1983. In 1983 she becomes Research Professor.

Gertrude Elion is awarded an honorary SD degree from Harvard University.

During World War II many positions open up for women in laboratories and Gertrude Elion works as assistant chemist to Hitchings at the Burroughs-Wellcome pharmaceutical company (now GlaxoSmithKline). Here, Elion wides her horizons into biochemistry, pharmacology, immunology, and eventually virology. She is assigned quite early to work on the purines, but she works also with pteridines and with condensed pyrimidine systems.

Gertrude Elion works as assistant organic chemist at the Denver Chemical Manufacturing Company. When the work becomes repetitive Elion decides that it is time to change job.

Gertrude Elion is President of the American Association of Cancer Research.

Gertrude Elion is born in New York City, to immigrant parents Bertha (Cohen) and Robert Elion. Her mother comes to the United States from a part of Russia which, after the war, becomes Poland, his father is originally from Lithuania.

Gertrude Elion attends New York University where she earns her M.Sc in chemistry.