general_fact: 13 is the speed of rush hour traffic on average in kilometres per hour in London.
math_fact: 13 is the number of Archimedian solids.
trivia: 13 is the Youngest age a minor can rent or purchase a T rated game by the ESRB without parental (age 18 or older) consent.
historical_date: January 13th is the day in 1972 that Prime Minister Kofi Abrefa Busia and President Edward Akufo-Addo of Ghana are ousted in a bloodless military coup by Colonel Ignatius Kutu Acheampong.