Hecho matemático: 4751 is the starting location of 8888 in the decimal expansion of p.
Trivia: 4751 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: January 2nd is the day in 1974 that President Richard Nixon signs a bill lowering the maximum U.S. speed limit to 55 MPH in order to conserve gasoline during an OPEC embargo.