El orígen del sahara (inglés)

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José Alejandro Rubio Estrada “The origin of the Sahara” A lush shelter becomes a desert

General Characteristics
The world’s largest desert extends over some 5,000 km across northern Africa, fromthe Atlantic to the red sea. It’s a territory with violent contrasts and extreme conditions, in where life it’s hard in some cases. But about 10,000 years ago the Sahara was a lush and fertile regionwhere the rain-swollen rivers, flowing from the forested mountains with a great diversity of flora and fauna that lived this region. There also man lived, who at first was maintained in the hunt andafter raising huge herds. For millennia these hunters and herdsmen of the Sahara shape their lives in the walls of the cliffs and caves vaults. All over the region have been preserved prehistoric rockcarvings and paintings, especially among the rock formations Tassili-n-Ajjer, plateaus in the south of Algeria. These carvings illustrate a part of the origin of the Sahara.

Chronicles of ancientcarvings and last days of paradise.
The most recent wet Sahara began 12.000 or 10.000 years ago, towards the end of the last glaciation. The oldest engravings and paintings of the Tassili-n-Ajjer, goback to the sixth millennium BC. These works of prehistoric art are chronicled gradual desiccation of the region. by the year 4000 BCE Sahara could not provide enough food for the herds of largeanimals like the elephant, who died or migrated to the south in search of pasture. The art of Saharan golden age (between 4,000 and 2,000 BC) shows cattle led to pasture and men armed with bows and arrows,hunt animals medium, while the women prepare the food and the children play. It is clear that they were peaceful and prosperous times for the Sahara. around the year 2.500 BCE culture of the tribesof shepherds began to decline. There was less rainfall, streams, swamps and water holes disappeared and the vegetation withered. The shepherds had to hunt out of necessity, and no recreation....
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