Edward Lorenz dies.

Edward Lorenz was the pioneer in the creation of chaos and strange attractor theory. He also showed how small actions could lead to major changes in what became known as the “butterfly effect.

Dr. Ian Malcolm – There. Look at this. See? See? I’m right again. Nobody could’ve predicted that Dr. Grant would suddenly, suddenly jump out of a moving vehicle.
Dr. Ellie Sattler – Alan? Alan!
Dr. Ian Malcolm – There’s, another example. See, here I’m now by myself, uh, er, talking to myself. That’s, that’s chaos theory.

(quote from Jurassic Park)

More @wikipedia:
Edward Lorenz
Chaos theory
Strange attractor