The very first celebration of the day Marty McFly became the second time traveler in history (we love you Einstein) was held in 2011.
In honor of Michael J. Fox, who plays Marty McFly in the movie, by 2015 Fox was suffering from Parkinson’s Disease and all proceeds from the Back to the Future Day activities go into his foundation.
As part of their Back 4 the Future campaign, Nike auctions 1500 pairs of limited edition MAG Replica shoes with proceeds going to Michael J. Fox’s foundation to fight Parkinson’s Disease.
The creators of the movie, Robert Zemeckis and Bob Gale, decided to use a DeLorean as the car that enables Marty McFly and Doc to time travel; after the film’s release, Zemeckis and Gale received a thank-you letter from John DeLorean for using his car in the movie.