The modern development of today's world would have first made the routes safer. Today we have the safety of common things such as police officers, hospitals, e.t.c. Transportation of goods would have been easier, and it would have been easier to carry larger amounts of goods at one time.
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<span>the establishment of the League of Nations</span>
I'm pretty sure that the answer to this question is letter A.
The answer is The Panic of 1819.
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