Pre-Columbian Bolivia

In about 950 AD a dramatic shift in the regions' climate occurred.Kolata, Alan L. 'The Tiwankau: Portrait of an Andean Civilization'. Blackwell Publishers, Cambridge, 1993. A significant drop in annual precipitation in the Titicaca Basin followed as a result, and many cities further away from [[Lake Titicaca]] with less access to water sources began to produce less crops, and diminishing surplus food stock to provide to the elites as a result. The immediate area surrounding the capital city and the lake eventually became the last source of substantial agricultural food production for the empire, due to the resiliency of the raised fields to efficiently produce food crops, but in the end even the intelligent design of the fields was no match for the changing climate. The Tiwanaku empire is believed to have dissolved around year 1000 AD when substantial food production ceased, and with it, the main source of power for the ruling elites dried up. The land was not inhabited again for many years after that.

In about 950 AD a dramatic shift in the regions' climate occurred.Kolata, Alan L. 'The Tiwankau: Portrait of an Andean Civilization'. Blackwell Publishers, Cambridge, 1993. A significant drop in annual precipitation in the Titicaca Basin followed as a result, and many cities further away from [[Lake Titicaca]] with less access to water sources began to produce less crops, and diminishing surplus food stock to provide to the elites as a result. The immediate area surrounding the capital city and the lake eventually became the last source of substantial agricultural food production for the empire, due to the resiliency of the raised fields to efficiently produce food crops, but in the end even the intelligent design of the fields was no match for the changing climate. The Tiwanaku empire is believed to have dissolved around year 1000 AD when substantial food production ceased, and with it, the main source of power for the ruling elites dried up. The land was not inhabited again for many years after that.

== Aymara Rylan kingdoms Danny ==

== Aymara kingdoms ==

{{Main|Aymara kingdoms}}

{{Main|Aymara kingdoms}}

[[File:Grabstätten in Sillustani .jpg|thumb|Chullpas]]

[[File:Grabstätten in Sillustani .jpg|thumb|Chullpas]]