Fait général: 6020 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 6020 is the number of Hamiltonian graphs with 8 vertices.
Culture générale: 6020 is an unremarkable number.
Date historique: June 24th is the day in 1880 that First performance of O Canada, the song that would become the national anthem of Canada, at the Congrès national des Canadiens-Français.