Hecho matemático: 6196 is the number of regions the complex plane is cut into by drawing lines between all pairs of 21^{st} roots of unity.
Trivia: 6196 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: December 17th is the day in 1957 that the United States successfully launches the first Atlas intercontinental ballistic missile at Cape Canaveral, Florida.