2. Ancient history begins after the flood 4000 B.C., of which one of Noah's sons Ham had four sons Cush (Ethiopia), Mizraim (Egypt), Phut (Libya), and Canaan (Isreal). The curse was placed on Canaan not Ham. Ancient history does not begin after a flood in 4000 BC, The human race evolved in Africa about 250,000 years ago. Nubian in Nubia did not come from a man named Cush. Mizraim is not the name of Egypt. Egypt’s original name was KMT/Kemet which means land of the blacks. And those nations prospered well before 4000BC.
3. The river in the Garden of Eden (Pishon) is the Nile River. Unlike the Tigris and the Euphrates, the Pishon has never been clearly located. It is briefly mentioned together with the Tigris in the Wisdom of Sirach (24:25), but this reference throws no more light on the location of the river. The Jewish-Roman historian Flavius Josephus, in the beginning of his Antiquities of the Jews (1st century AD) identified the Pishon with the Ganges. The medieval French rabbi Rashi identified it with the Nile. Some early modern scholars, including A.D. Calumet (1672–1757), Rosenmüller (1768–1835), and Kell (1807–1888), believed the source river [for Eden] was a region of springs: "The Pishon and Gihon were mountain streams. James A. Sauer, former curator of the Harvard Semitic Museum, made an argument from geology and history that Pishon referred to what is now the Wadi Bisha, a dry channel which begins in the Hijaz Mountains near Medina to run northeast to Kuwait. With the aid of satellite photos, Farouk El-Baz of Boston University traced the dry channel from Kuwait up the Wadi Al-Batin and the Wadi Al-Rummah system originating near Medina.