math_fact: 8923 is the numerator of 1 / 1^{1} + 1 / 2^{2} + 1 / 3^{3} + 1 / 4^{4}.
trivia: 8923 is a boring number.
historical_date: June 5th is the day in 1975 that the United Kingdom holds its first country-wide referendum, on remaining in the European Economic Community (EEC).