Re:The 4 "F's" - FACTS FOR FOOTBALL FANS"
Football is one of two American pasttimes represented in the murals adorning the ceiling of the Library of Congress's Jefferson Building, opened in 1897. The other sport is baseball.
Why football in 1897? Although baseball was/is/was the national pasttime, football was a sport played in the colleges. The placement of a mural depicting an activity occuring in American colleges in the Library, a place of academic learning and understanding, seemed appropriate.
But, too keep in congruency with the other art (murals, mozaics, sculptures) in the building, the players are depicted as (naked)classical Greek figures.