Fatto matematico: 6820 is the number of regions formed when all diagonals are drawn in a regular 23-gon.
Trivia: 6820 is a boring number.
Data storica: September 2nd is the day in 1963 that CBS Evening News becomes U.S. network television's first half-hour weeknight news broadcast, when the show is lengthened from 15 to 30 minutes.