general_fact: 66422 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 66422 is an unremarkable number.
trivia: 66422 is an uninteresting number.
historical_date: November 8th is the day in 1519 that Hernán Cortés enters Tenochtitlán and Aztec ruler Moctezuma welcomes him with a great celebration.