Hecho general: 2013 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 2013 is an uninteresting number.
Trivia: 2013 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: July 5th is the day in 1935 that the National Labor Relations Act, which governs labor relations in the United States, is signed into law by President Franklin D. Roosevelt.