Fatto matematico: 2694 is the number of ways 22 people around a round table can shake hands in a non-crossing way, up to rotation.
Trivia: 2694 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: May 17th is the day in 1980 that General Chun Doo-hwan of South Korea seizes control of the government and declares martial law in order to suppress student demonstrations.