Modern people aren’t the only ones who collect useless items. A find in the Kalahari in Africa shows that Homo sapiens from 105,000 years ago did the same. During an archaeological discovery on Ga-Mohana Hill in the Kalahari, they found fragments of crystals and eggshells.
In this region of Africa it rains very little as the rain depends on the time of year. Although it is believed that in the distant past the water was abundant in the place. This is evidenced by the rocks called tuffs that form where there is fresh water.
They discovered calcite crystals that are of no practical use
Archaeologists found 22 calcite crystals at the site that do not belong to this area but were brought from distant places. They also found remains of ostrich eggs, which they believe were used as reservoirs for drinking water. The journal Nature published the details of the discovery.
Although the finding has other connotations to scientists, it shows that the evolution of Homo sapiens did not take place in coastal areas. Until the discovery in Ga-Mohana, the theory showed that the evolution of the modern human species had taken place on the coasts of Africa.
They used the optical luminescence technique to determine age
The deposits found in the past from instruments used by humans 70,000 to 120,000 years ago provided this data. However, the study published in Nature by scientists at Griffith University in Brisbane, Australia shows that modern humans lived inland 105,000 years ago.
About the crystals they discovered, the scientists claim that they did not get there naturally. If not, that they were brought as part of a collection or for spiritual reasons, as the location is still a reason for worship by the current residents of the hill.
The archaeologists were able to determine the age of the site using optical luminescence or OSL. This technique measures the signs that the passage of time remains in the layers that accumulate in the earth’s sediments. So they found out how long the crystals were there.
The studies carried out show that people not only lived in places far from the coast, but also made progress. According to experts, they don’t just collect objects like crystals that have no obvious purpose. This cumulative or collection purpose bears many similarities to modern man.
White calcite crystals are not used to make tools from them and it remains to be believed that they were brought from afar because of their beauty or some ritual. Studies also reveal that the Kalahari find may not be the only one. You are likely to discover many more finds like this one.