Disappearance: The event or period when the Maya civilization suddenly or gradually declined, leaving many of their cities abandoned.

Environmental Factors: Natural events like droughts or deforestation that may have contributed to the decline.

Internal Conflict: Civil wars or political unrest within Maya city-states that could have weakened society.

European Contact: The arrival of Europeans, which some historians suggest accelerated decline due to conquest and disease.

Cultural Collapse: The breakdown of social, political, and religious systems of the Maya.

Drought: A prolonged period of low rainfall, often linked to environmental stress and decline.

Abandonment: The process of leaving or forsaking cities, often seen as part of the decline.

Archaeological Evidence: Artifacts, ruins, and other physical remains that help us understand the Maya civilization's history.

Historical Theories: Explanations proposed by historians about why the Maya disappeared, including environmental, social, and external factors.