math_fact: 8369 is the largest prime factor of 2 × 3 × 5 × 7 × 11 × 13 × 17 - 1.
trivia: 8369 is a boring number.
historical_date: November 29th is the day in 1394 that the Korean king Yi Seong-gye, founder of the Joseon Dynasty, moves the capital from Kaesŏng to Hanyang, today known as Seoul.