Anyone know the answer?

Consider these text features from chapter 1 of wheels of change by sue macy. as the demand for bicycles grew in the 1890s, so did the demand for accessories—such as bells, locks, and lamps—and repairs. this photograph shows the joseph h. ferodowill bicycle repair shop in st. paul, minnesota, in 1899. this photo and caption enhance the book’s information about .

April does not let things interrupt her goals, she just continues on until she gets what she wants. complete, run on or comma splice

Hillenbrand writes, "as louie blazed through college, far away, history was turning" (p. 43). why does the author interrupt louie's narrative with information about japan and germany?