Hecho general: 830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 830 is a boring number.
Trivia: 830 is an uninteresting number.
Fecha histórica: April 9th is the day in 1961 that the Pacific Electric Railway in Los Angeles, once the largest electric railway in the world, ends operations.