One of the grandchildren of the Prophet Muhammad said: Before the last Adam there were thousand thousands Adams, each of them had a prophet. And our Adam is the last.
Scientists previously believed that the oldest Homo sapiens had spread into groups 100-160 thousand years ago. But in 2017, researchers discovered that Homo sapiens originated on all Africa, but not in one specific place called “One Cradle of Mankind”. Genetic analysis shows that DNA of fossils aged 300,000 years, was identical to that of peoples lived in all Africa and the Sahara. Also researchers found 300,000-year-old sapiens in Morocco. This confirm the origin of modern humans before this time.
Homo sapiens expanded out of Africa as a result of climatic fluctuations, so they were found in Saudi Arabia (dating back to 85,000 years ago), Palestine (at least 100,000 years ago) and Greece (210,000 years ago), indicating the expansion of Homo sapiens in the world, where human species had disappeared before them, such as Neanderthals.
Homo sapiens had spread in multiple trips, so they meet other human species, most notably Neanderthals who were present in Europe.
There is evidence that ancient humans coexisted in Africa 300,000 years ago with a species of hominin, at the same time as the emergence of modern humans.
There were no sign of an "extinction event" for hominins disappear. Scientists, found evidence that Homo sapiens intermarried with Neanderthals, so it is possible to intermarried with hominins too.