Answer:
1889 Johnstown flood
Explanation:
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Since the line in the poem is not mention, and even the poem itself, here's a quick answer about the usage of metaphor and simile.
<span> In general sense, metaphor has a stronger assertion compared to simile . A metaphor implies that A "is" B ; a simile only says that A "is LIKE" B.</span>
The answer to the riddle is "none"
The rhetorical devices that Thoreau used in Resistance to the civil government are:
Metaphor: is used to help the reader to understand the argument he is trying to say. Government as a machine (mechanical, unnatural, dehumanized).
Anaphora: Thoreau uses repetition and parallel structures. For example, repetition of "Why" or "does not".
Allusion: Christ, Copernicus, Luther, Washington and Franklin rebels.
If you take a look at the name Prospero, you will probably be reminded of the word prosperous. So, we can assume, based on the Prince's name, that he is prosperous, which means rich and successful, which is true, if you've read the story. However, he is a crazy, selfish hedonist, who doesn't think about his subjects at all, but rather just wants to please and save himself.