Hecho matemático: 906 is the number of perfect graphs with 7 vertices.
Trivia: 906 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: June 24th is the day in 2010 that John Isner of the United States defeats Nicolas Mahut of France at Wimbledon, in the longest match in professional tennis history.