A Century of Accidents, Arguments, and Genius
Most people picture medical discovery as a single flash of insight — a scientist shouting "eureka" in a lab coat. The real history is messier, and often more interesting. Alexander Fleming didn't set out to discover penicillin in 1928; he returned from a summer holiday to find a stray mold, Penicillium notatum, had contaminated a petri dish of staphylococcus bacteria and killed the surrounding colonies. Fleming published his observation, but he lacked the chemistry to purify the compound into a usable drug, and the finding sat half-forgotten for over a decade. It took Howard Florey and Ernst Chain, working at Oxford in the early 1940s, to turn a curious mold into a medicine that could be mass-produced in time to treat wounded soldiers in World War II. Fleming, Florey, and Chain shared the 1945 Nobel Prize in Physiology or Medicine for it.
Insulin's discovery, by contrast, was deliberate and fast. In the summer of 1921 at the University of Toronto, Frederick Banting and his student assistant Charles Best isolated an extract from a dog's pancreas that lowered blood sugar in another dog whose own pancreas had been removed. By January 1922, a purified version was being given to a 14-year-old patient, Leonard Thompson, who had been near death from type 1 diabetes. Banting and the lab's director, John Macleod, received the 1923 Nobel Prize — a decision so controversial that Banting split his prize money with Best, who had been left off the citation entirely.
Building on What Came Before
Few breakthroughs stand alone. Louis Pasteur's germ theory work in the 1860s — including the famous swan-neck flask experiments that disproved spontaneous generation — gave surgeons like Joseph Lister a scientific basis for antiseptic technique, which in turn made anesthesia (introduced by William Morton in 1846) safe to use for longer, more complex operations. Wilhelm Röntgen's accidental discovery of X-rays in 1895, using a cathode ray tube in his German laboratory, earned him the first-ever Nobel Prize in Physics in 1901 and gave physicians their first way to see inside a living body without cutting it open.
The 1953 discovery of the DNA double helix by James Watson and Francis Crick is perhaps the clearest example of how credit and collaboration get tangled in hindsight. Their model depended heavily on X-ray diffraction images — particularly the now-famous "Photo 51" — captured by chemist Rosalind Franklin, whose data was shown to Watson without her direct knowledge. Watson, Crick, and Franklin's colleague Maurice Wilkins shared the 1962 Nobel Prize; Franklin, who had died of ovarian cancer in 1958, was never eligible, since the Nobel is not awarded posthumously.
Each of these stories rewards close attention to the same details this game asks you to recall: who did the work, where, in what year, and what it made possible next. Understanding that chain — germ theory to antiseptic surgery to modern operating rooms, or X-rays to CT scanners to MRI — is what separates memorizing trivia from understanding how medicine actually progresses.
Source: Encyclopaedia Britannica and the National Library of Medicine (NIH).