[ShadowAce]

Now I can't remember who really did!

Marie Currie

[ShadowAce]

Oops. I was wrong. Alexander Fleming.

[Froufrou]

"The serendipitous discovery of penicillin is usually attributed to Scottish scientist Alexander Fleming in 1928, though others had earlier noted the antibacterial effects of Penicillium."

Sorry, that's from wikipedia. Curie was a physicist who discovered radium and died in 1934 from aplastic anemia caused by handling the stuff.