general_fact: 163 is the atomic number of an element temporarily called Unhextrium.
math_fact: 163 is the function f(n) = n2 + n + 41 gives prime values for all values of n between 0 and 39, and for n < 107 approximately half of all values are prime.
trivia: 163 is the atomic number of an element temporarily called Unhextrium.
historical_date: June 11th is the day in 1903 that Group of Serbian officers stormed royal palace and assassinated King Alexander Obrenović and his wife queen Draga.