On November 5, 1955, Dr. Emmett Lathrop Brown hit his head on the side of a bathroom sink. As his headache faded, an image appeared, an idea that would finally make time travel possible: the flux capacitor.
While the tools were invented that day, it took until October 25, 1985 for Doc Brown to put together all the parts for a time traveling automobile. Then finally, at 1:21 a.m. on that fateful autumn day he successfully pulled off the first first temporal displacement.
It was a great inventing process that began all those years ago, so let's take a moment to think of our fondest memories of Doc Brown, his Delorean DMC-12, and his time traveling companion, Martin McFly. [Wired]