Fatto matematico: 2958 is the number of multigraphs with 21 vertices and 4 edges.
Trivia: 2958 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: February 5th is the day in 1997 that the so-called Big Three banks in Switzerland announce the creation of a $71 million fund to aid Holocaust survivors and their families.