Why does bradbury reference several authors?

What does the first line in this stanza from old ironsides by oliver wendell holmes tell the reader about the ship

Key events - what happens? what do we learn about the character in this event? or how does the event change the character? what is the author’s message in each set of events you have identified? 1.bruno and his family move from berlin to auschwitz due to the move he learns of the camp which leads to another key event. 2.bruno meets shmuel when they meet, they become friends which in turn towards the end leads to their untimely demise.

How do you think the political and social strife of england influenced jonathan swift ? how were these problems connected to reason