|Originating in the Hijaz Mountains near Medina, the ancient waterway, currently concealed beneath sand dunes, runs northeast to Kuwait. Dubbed the Kuwait River by its modern discoverer, Farouk El-Baz from Boston University, it once joined the Tigris and Euphrates at the head of the Persian Gulf. Then because of climate changes, it dried up, sometime between 3500-2000 B. C.|
Around 6000 to 5000 B.C., there was a period called the Neolithic Wet Phase.
The River Pishon is mentioned in the Bible:
"A river watering the garden flowed from Eden; from there it was separated into four headwaters. The name of the first is the Pishon; it winds through the entire land of Havilah, where there is gold. The gold of that land is good; the bdellium and onyx stone are there…The name of the second river is the Gihon; it winds through the entire land of Cush. The name of the third river is the Tigris; it runs along the east side of Asshur. And the fourth river is the Euphrates." - Moses’ description of the Pishon River, Genesis 2:10-14.