_ On Nov. 12, 1892, William “Pudge” Heffelfinger becomes the first professional football player when Pittsburgh’s Allegheny Athletic Association pays him $500 to play as a ringer in a game against the rival Pittsburgh Athletic Club. Before then, players had traded their services on the field for expense money or trinkets, not cash._ On Nov. 11, 1918, at 11 o’clock of the 11th day of the 11th month, the First World War comes to an end. The Great War claimed the lives of 9 million soldiers; 21 million more were wounded. Civilian casualties caused indirectly by the war numbered close ...