The NFL on Pearl Harbor Day [J. Mark English]

December 7th, 1941 -- a date which will live in infamy -- the United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan. - Franklin D. Roosevelt

Today we remember the horrible attack that launced the United States into full scale war against the Empire of Japan, and Hitler's Germany.

On the Pro Football Hall of Fame site, there is blurb about how fans of the NFL recieved the news:

Three scheduled NFL games were under way when the Japanese first attacked Pearl Harbor at 12:55 p.m. Eastern time on Sunday, December 7, 1941.

The public address announcer at New York’s Polo Grounds, where fans were celebrating “Tuffy Leemans' Day” in honor of their star running back, interrupted his commentary to tell all servicemen to report to their units.

The same was done at Chicago’s Comiskey Park. At Washington’s Griffith Stadium, the announcer paged high-ranking government and military personnel who were in attendance, but did not mention the attack. Reporters were told to check with their offices.

On Monday, December 8, America officially entered World War II.