Rutherford B. Hayes. You know you can google these kinds of simple questions, right? It's much faster and more reliable.
Explanation:
The Aztecs, now led by Cuauhtemoc, succumbed to smallpox fever, which had been brought by one of the Spaniards, after 93 days of resistance on the fateful day of August 13, 1521 CE. The city of Tenochtitlan was sacked, and its temples were desecrated.
The type of document is a letter
Too many fisherman and not enough fish have decimated a historical way of life.