Hecho matemático: 5242 is the number of ways to place 8 non-attacking kings on a 8×8 chessboard so that there is a king in every row and column.
Trivia: 5242 is an uninteresting number.
Fecha histórica: May 8th is the day in 1886 that Pharmacist John Styth Pemberton first sells a carbonated beverage named "Coca-Cola" as a patent medicine.