1890 was a year in the 19th century.
Events
- Tuesday, March 11: Vannevar Bush, director of the Office of Scientific Research and Development, which oversaw the Manhattan Project, is born.
- Unknown date: After unsuccessfully attempting to generate the amount of electricity needed for time travel, Emmett Brown tells the story of how he and Marty McFly first met to his sons Jules and Verne, the latter of whom Clara mentions is only two years old.