How do the subheads support the chronological sequence of the passage

Read this excerpt from leah missbach day's foreword to wheels of change. bicycles have long played a role in my life. as a young woman, i rode one year-round before i had a car. but it was later in adulthood that the bicycle became more than a source of transportation for me. the bicycle actually began to truly shape the way i saw the world. what is the author's purpose for including this in the foreword?

How do sotomayor's descriptions of her family most likelyaffect readers?

What literary technique is evident in these words from beowulf?