known by different names, including "Land of the Bow", tꜣ nḥsj, jꜣm "Kerma", jrṯt, sṯjw, wꜣwꜣt, Meroitic: akin(e) «Lower "Nubia"» and qes(a), qos(a) "Kush", and Greek Aethiopia. The origin of the names Nubia and Nubian are contested. What is more certain is that they ultimately denote geographical provenance rather than ethnic origin. Based on cultural traits, many scholars believe Nubia is derived from the "gold". The Roman Empire used the term "Nubia" to describe the area of Upper Egypt and northern Sudan. Another etymology traces the toponym to a distinct group of people, the Noubai, who in more recent times inhabited the area that would become known as Nubia. The derivation of the term "Nubian" has also been associated with the Greek historian Strabo, who referred to the Nubas people. History The prehistory of Nubia dates to the Paleolithic around 300,000 years ago. By about 6000 BC, peoples in the region had developed an agricultural economy. They began using a system of writing relatively late in their history, when they adopted the Egyptian hieroglyphic system. Ancient history in Nubia is categorized according to the following periods: A-Group culture (3700–2800 BC), C-Group culture (2300–1600), Kerma culture (2500–1500), Nubian contemporaries of the New Kingdom (1550–1069), the Twenty-fifth Dynasty (1000–653), Napata (1000–275), Meroë (275 BC–300/350 AD), Makuria (340–1317), Nobatia (350–650), and Alodia (600s–1504). Archaeological evidence has attested that population settlements occurred in Nubia as early as the Late Pleistocene era and from the 5th millennium BC onwards, whereas there is "no or scanty evidence" of human presence in the Egyptian Nile Valley during these periods, which may be due to problems in site preservation. Several scholars have argued that the African origins of the Egyptian civilisation derived from pastoral communities which emerged in both the Egyptian and Sudanese regions of the Nile Valley in the fifth millennium BCE. The linguistic affinities of early Nubian cultures are uncertain. Some research has suggested that the early inhabitants of the Nubia region, during the C-Group and Kerma cultures, were speakers of languages belonging to the Berber and Cushitic branches, respectively, of the Afroasiatic family. More recent research instead suggests that the people of the Kerma culture spoke Nilo-Saharan languages of the Eastern Sudanic branch and that the peoples of the C-Group culture to their north spoke Cushitic languages. They were succeeded by the first Nubian language speakers, whose tongues belonged to another branch of Eastern Sudanic