Final answer:
The Aztec Empire ended due to the arrival of Spanish conquistadors, diseases brought by Europeans, and internal conflicts.
Step-by-step explanation:
The Aztec Empire ended due to a combination of factors, including the arrival of the Spanish conquistadors, diseases brought by the Europeans, and internal conflicts within the empire.
The Spanish conquistador, Hernán Cortés, led an expedition to Mexico in 1519 and with the help of other indigenous groups who were enemies of the Aztecs, he captured their capital city, Tenochtitlan, in 1521. This marked the downfall of the Aztec Empire.
The introduction of diseases such as smallpox, to which the Aztecs had no immunity, also greatly weakened their population and ability to resist the Spanish conquest.
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