John Titor is a name used here on Time Travel Institute and other bulletin boards during 2000 and 2001. Posting under the handle TimeTravel_0, Titor made his first post on November 1, 2000.
The author of these posts claimed to be an American military time traveler from 2036. John Titor made numerous predictions, some vague and some specific, regarding calamitous events in 2004 and beyond. One such claim included a nuclear war.