Respuesta :
His greatest impact in history is that he established a firm Spanish presence in the New World after conquering the Aztec capital of Tenochtitlan.
Answer:
One effect is that he established a firm Spanish presence in the New World after conquering the Aztec capital of Tenochtitlan.
Explanation:
His greatest impact in history is that he established a firm Spanish presence in the New World after conquering the Aztec capital of Tenochtitlan.