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Modern humans crossed the Straits of Bab el Mandab in the southern Red Sea, and moved along the green coastlines around Arabia, and thence to the rest of Eurasia.
Fossils of early Homo sapiens were found in Qafzeh cave in Israel and have been dated 80,000 to 100,000 years ago.
The early northern Africa dispersal took place between 130,000–115,000 years ago.
Beginning 135,000 years ago, tropical Africa experienced megadroughts which drove the humans from the land and towards the sea shores, and forced them to cross over to other continents.
As of 2017, the earliest evidence of humans in Australia is at least 65,000 years old, ...genetic evidence suggests that a small band with the marker M168 migrated out of Africa along the coasts of the Arabian Peninsula and India, through Indonesia, and reached Australia very early, between 60,000 and 50,000 years ago.
This very early migration into Australia is also supported by Rasmussen et al. Tianyuan man from China has a probable date range between 38,000 and 42,000 years ago, while Liujiang man from the same region has a probable date range between 67,000 and 159,000 years ago.
There seem to have been at least two dispersals of populations of Homo sapiens out of Africa, and even more dispersals have been proposed.
Homo erectus appears shortly after 2 million years ago, migrated out of Africa around 1.8 million years ago, and had spread throughout Eurasia by one million years ago.The great apes (hominids) evolved in East Africa around 22 million years ago.The first hominids to spread into Asia were Ponginae, after some 18 million years ago.High rates of variability yielded by various dating techniques carried out by different researchers place the most widely accepted range of dates with 67,000 BP as a minimum, but does not rule out dates as old as 159,000 BP.
By some 70,000 years ago, a part of the bearers of mitochondrial haplogroup L3 migrated from East Africa into the Near East.Today at the Bab-el-Mandeb straits, the Red Sea is about 20 kilometres (12 mi) wide but 50,000 years ago sea levels were 70 m (230 ft) lower (owing to glaciation) and the water was much narrower.