Time travel was introduced during the 1948 World Fair, and within 20 years minor edits of the timestream had become commonplace. So, when Nixon faced having to resign in the face of Watergate, he dispatched one of his aides to undo the incident. Unfortunately, it turned out that the alternative to Nixon resigning was...Nixon resigning.
|1868'||Abraham Lincoln Impeached|
|1948'||Berlin Hosts World's Fair|