Final answer:
Baseball has evolved through changes in rules, equipment, and player diversity, reflecting American life and culture. The game expanded in popularity and geographical reach, and the experiences of racial and ethnic minorities highlighted the challenges faced by nonwhites.
Step-by-step explanation:
Baseball has undergone significant changes in rules, equipment, and player diversity over the course of history. It has evolved into the modern game we know today through various developments. In the late 19th century, the game experienced the rise of professional teams and the formation of the National League. Scandals involving gambling also affected baseball's evolution. The game's popularity and geographical reach expanded, and it became a reflection of American life and culture during the 1920s. The Negro Leagues and the experiences of racial and ethnic minorities in sport demonstrated the opportunities and challenges faced by nonwhites at that time. These changes and developments have contributed to the evolution of baseball throughout history.