Drought can change the history of humanity

Scientists have determined that 70 thousand years ago the most severe drought occurred in Africa, which may have changed the history of human development.

At the American Geophysical Union Conference, it was reported that 70 thousand years ago Malauy Lake was nearly 550km long, 700m deep, having dried up a few areas no more than 10km wide and no more than 200m deep. Lake Bousunvi, located at the crater and currently 10km wide, was completely dried up at the time.

Such dryness can only occur when droughts persist across the continent. This finding draws the attention of scientists because the time of such dire droughts in Africa overlapped with one of the key assumptions in human evolution.

After studying the soil samples from the bottom of two lakes in East Africa and the lake in Gana, scientists came to such a conclusion. These soil samples allow to affirm that equatorial Africa has suffered a period of persistent drought.

Scientists believe that may be one of the reasons leading to the ancestors of modern humans leaving the continent and dispersing around the world.

Those who remain in Africa must have extremely tough health to withstand the losses caused by drought.

American scientists believe that the drought causes serious damage to the landscape, not only humans, but also African animals.

Genetic studies provide the basis for confirming that modern humans originate from a population of about 10 people living in Africa.

Scientists assume that immediately after the drought ends, humans begin to proliferate and many of our ancestors migrated from Africa to the Near East, Asia and Europe.

Scientists increasingly believe that catastrophes in ancient times have a direct impact on human destiny.