Final answer:
The author uses evidence of infectious diseases and the conquest of Maya towns to support the claim that the arrival of the Spanish "destroyed our people".
Step-by-step explanation:
The author uses evidence of infectious diseases, such as smallpox, spread by the Spanish to support the claim that the arrival of the Spanish "destroyed our people". The disease spread rapidly among the Maya and Aztec populations, resulting in a high death toll, and a significant decline in population. This evidence demonstrates the devastating impact the Spanish had on the native people.
In addition to the spread of diseases, the Spanish also conquered Maya towns, including the Aztec capital, Tenochtitlan. This military conquest contributed to the destruction of the native people and their way of life.
Therefore, the pieces of evidence the author uses to support the claim that the arrival of the Spanish "destroyed our people" are the spread of infectious diseases and the conquest of Maya towns.