Answer:
For your first question, baseball was referred to as America's pastime.
For your second question, in the 1920s high schools moved their focus from providing skills for students to attend college to providing skills for life. Since these skills were much more accessible and useful to the general populace in the 1920s, many of whom did not have enough money to go to university, the popularity of high schools boomed and many students began attending high school.
Step-by-step explanation:
Hope this helped!