Final answer:
The World Series events mentioned from '72, '73, and '74 are associated with professional baseball, which was an essential part of American culture and history during that time.
Step-by-step explanation:
The years World Series '72, World Series '73, and World Series '74 refer to the championship games of professional baseball. This period in history was marked by the immense popularity of baseball in America. Great players like Babe Ruth were symbolic of the sport and became an integral part of American popular culture. Baseball provided not just entertainment but also a way for the community to come together and form a unified civic identity.
Despite earlier gambling scandals, such as the one involving the 1919 Chicago White Sox, baseball grew in popularity. By the 1920s, baseball had become the American pastime, capturing the imagination of fans nationwide. Landmark stadiums such as Fenway Park in Boston and the Polo Grounds in New York stood as epicenters of public gatherings where sports transcended play to become emblematic of American life.