Six Degrees Events

Six Degrees of Separation refers to the idea that, if a person is one step away from each person they know and two steps away from each person who is known by one of the people they know, then everyone is an average of six steps away from each person on Earth. The theory was originally researched in 1929 by a Hungarian author named Frigyes Karinthy, and continued later by Michael Gurevich and Stanley Milgrim.