general_fact: 140 is liters of water needed to produce 1 cup of coffee.
math_fact: 140 is a harmonic divisor number.
trivia: 140 is the character-entry limit for Twitter, a well-known characteristic of the service (based on the text messaging limit).
historical_date: May 19th is the day in 1934 that Zveno and the Bulgarian Army engineer a coup d'état and install Kimon Georgiev as the new Prime Minister of Bulgaria.