<span>well, no one knows why the first generation of mayas disappeared leaving their communities uninhabited.... but some of these cities are Tikal, Uaxactún, Piedras Negras, Cancuén, Caracol, Yaxhá, Naranjo, Xultún, Río Azul, Naachtún, Dos Pilas, Machaquilá, Aguateca, Palenque, Yaxchilán, Kankí,Bonampak, Quiriguá, Tulum, Edzná, Oxquintok, Ceibal, Xamantún, Copán, San Andrés, Yaaxcanah, Cobá, El Cedral, Ichpaatún, Kantunilkín, Kuc (Chancah), Kucican, Tazumal, Las Moras, Mario Ancona, Muyil, Oxlakmul, Oxtancah, Oxhindzonot, Pasión de Cristo, Río Indio, San Antonio III, Nohkuo Punta Pájaros, San Manuel, San Miguel, Punta Molas, Tamalcab, Templo de las Higueras, Tupack, Xlahpak, Tzibanché y Kohunlich.</span>
With respect to the cognitive view of depression on people’s attributions, depression is thought to be related to negative achievement-related events and pessimistic attributional style. This is connected to an individual's wishes, hopes, and dreams that create disappointment if not achieved.
