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The Cataracts of the Nile are shallow lengths (or whitewater rapids) of the Nile river, between Khartoum and Aswan, where the surface of the water is broken by many small boulders and stones jutting out of the river bed, as well as many rocky islets. In some places, these stretches are punctuated by whitewater, while at others the water flow is smoother but still shallow.
Counted going upstream (from north to south):
In Egypt:
In Sudan:
Geologists indicate that the region of northern Sudan is tectonically active and this activity has caused the river to take on "youthful" characteristics. [1] The Nubian Swell has diverted the river's course to the west, while keeping its depth shallow and causing the formation of the cataracts. Even as the river bed is worn down by erosion, the landmass is lifted, keeping parts of the river bed exposed. These distinctive features of the river between Aswan and Khartoum have led to the stretch being often referred to as the Cataract Nile, while the downstream portion is occasionally referred to as the "Egyptian" Nile. The geological distinction between these two portions of the river is considerable. North of Aswan, the river bed is not rocky, but is instead composed of sediment, and far from being a shallow river. It is believed [2] that the bedrock was previously eroded to be several thousand feet deep. This created a vast canyon that is now filled with sediment.
Despite these characteristics, some of the cataracts which are normally impassable by boat because of the shallow water have become navigable during the flood season.
The word "cataract" comes from the Greek word καταρρέω ("to flow down"), although the original Greek term was the plural-only Κατάδουποι. However, contrary to this, none of the Nile's six primary cataracts could be accurately described as waterfalls, and given a broader definition, this is the same with many of the minor cataracts.
In ancient times, Upper Egypt extended from south of the Nile Delta to the first cataract, while further upstream, the land was controlled by the ancient Kingdom of Kush that would later take over Egypt from 760 to 656 BC. [3] Besides the Kushite invasion, for most of Egyptian history, the Nile's cataracts, particularly the First Cataract, primarily served as a natural border to prevent most crossings from the south, as those in said region would rely on river travel to venture north and south. This allowed Egypt's southern border to be relatively protected from invasions, and besides brief Kushite rule, it remained a natural border for most of Egyptian history. [4]
Eratosthenes gave a precise description of the Cataract-Nile: [5]
It has a similar shape to a backwards letter N. It flows northward from Meroë about 2700 stadia, then turns back to the south and the winter sunset for about 3700 stadia, and it almost reaches the same parallel as the Meroë region and makes its way far into Libya. Then it makes another turn, and flows northward 5300 stadia to the great cataract, curving slightly to the east; then 1200 stadia to the smaller cataract at Syene (i.e. Aswan), and then 5300 more to the sea.
The six cataracts of the Nile are depicted extensively by European visitors, notably by Winston Churchill in The River War (1899), where he recounts the exploits of the British trying to return to the Sudan between 1896 and 1898, after they were forced to leave in 1885.
Today, Lake Nasser has filled most of the area between the first and second cataracts (known as Lower Nubia), and its monuments moved as part of the International Campaign to Save the Monuments of Nubia.
The geography of Egypt relates to two regions: North Africa and West Asia.
The Nile is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa and has historically been considered the longest river in the world, though this has been contested by research suggesting that the Amazon River is slightly longer. Of the world's major rivers, the Nile is one of the smallest, as measured by annual flow in cubic metres of water. About 6,650 km (4,130 mi) long, its drainage basin covers eleven countries: the Democratic Republic of the Congo, Tanzania, Burundi, Rwanda, Uganda, Kenya, Ethiopia, Eritrea, South Sudan, Sudan, and Egypt. In particular, the Nile is the primary water source of Egypt, Sudan and South Sudan. Additionally, the Nile is an important economic river, supporting agriculture and fishing.
The Aswan Dam, or more specifically since the 1980s, the Aswan High Dam, is one of the world's largest embankment dams, which was built across the Nile in Aswan, Egypt, between 1960 and 1970. When it was completed, it was the tallest earthen dam in the world, eclipsing the United States' Chatuge Dam. Its significance largely upstaged the previous Aswan Low Dam initially completed in 1902 downstream. Based on the success of the Low Dam, then at its maximum utilization, construction of the High Dam became a key objective of the new regime the Free Officers movement of 1952; with its ability to better control flooding, provide increased water storage for irrigation and generate hydroelectricity, the dam was seen as pivotal to Egypt's planned industrialization. Like the earlier implementation, the High Dam has had a significant effect on the economy and culture of Egypt.
Nubians are a Nilo-Saharan ethnic group indigenous to the region which is now Northern Sudan and southern Egypt. They originate from the early inhabitants of the central Nile valley, believed to be one of the earliest cradles of civilization. In the southern valley of Egypt, Nubians differ culturally and ethnically from Egyptians, although they intermarried with members of other ethnic groups, especially Arabs. They speak Nubian languages as a mother tongue, part of the Northern Eastern Sudanic languages, and Arabic as a second language.
Lake Nasser is a vast reservoir in southern Egypt and northern Sudan. It is one of the largest man-made lakes in the world. Before its creation, the project faced opposition from Sudan as it would encroach on land in the northern part of the country, where many Nubian people lived who would have to be resettled. In the end Sudan's land near the area of Lake Nasser was mostly flooded by the lake. The lake has become an important economic resource in Egypt, improving agriculture and touting robust fishing and tourism industries.
The Nubian pyramids were built by the rulers of the ancient Kushite kingdoms. The area of the Nile valley known as Nubia, which lies in northern present-day Sudan, was the site of three Kushite kingdoms during antiquity. The capital of the first was at Kerma. The second was centered on Napata. The third kingdom was centered on Meroë. The pyramids are built of granite and sandstone.
Wādī Ḥalfā is a city in the Northern state of Sudan on the shores of Lake Nubia near the border with Egypt. It is the terminus of a rail line from Khartoum and the point where goods are transferred from rail to ferries going down the lake. As of 2007, the city had a population of 15,725. The city is located amidst numerous ancient Nubian antiquities and was the focus of much archaeological work by teams seeking to save artifacts from the flooding caused by the completion of the Aswan Dam.
Lower Nubia is the northernmost part of Nubia, roughly contiguous with the modern Lake Nasser, which submerged the historical region in the 1960s with the construction of the Aswan High Dam. Many ancient Lower Nubian monuments, and all its modern population, were relocated as part of the International Campaign to Save the Monuments of Nubia; Qasr Ibrim is the only major archaeological site which was neither relocated nor submerged. The intensive archaeological work conducted prior to the flooding means that the history of the area is much better known than that of Upper Nubia. According to David Wengrow, the A-Group Nubian polity of the late 4th millenninum BCE is poorly understood since most of the archaeological remains are submerged underneath Lake Nasser.
Napata was a city of ancient Kush at the fourth cataract of the Nile founded by the Egyptian Amun cult for Egyptian pilgrims given by its, as suggested, Egyptian name. It is located approximately 1.5 kilometers from the east side of the river at the site of modern Karima, Sudan. It was the southernmost permanent settlement in the New Kingdom of Egypt and home to Jebel Barkal, the main Kushite cult centre of Amun. It was the sometime capital of the Twenty-fifth Dynasty of Egypt and, after its fall in 663 BC, of the Kingdom of Kush. In 593 BC, it was sacked by the Egyptians and the Kushite capital was relocated to Meroë. Even after this move, Napata continued to be the kingdom's primary religious centre. The city was sacked a second time by the Romans in 23 BC but was rebuilt and continued as an important centre of the Amun cult.
The Merowe Dam, also known as Merowe High Dam, Merowe Multi-Purpose Hydro Project or Hamdab Dam, is a large dam near Merowe Town in northern Sudan, about 350 kilometres (220 mi) north of the capital Khartoum. Its dimensions make it the largest contemporary hydropower project in Africa. It is situated on the river Nile, close to and inundating the 4th Cataract where the river divides into multiple smaller branches with large islands in between. Merowe is a city about 40 kilometres (25 mi) downstream from the construction site at Hamdab. The main purpose for building the dam was the generation of electricity.
Alara was a King of Kush, who is generally regarded as the founder of the Napatan royal dynasty by his 25th Dynasty Kushite successors and was the first recorded prince of Kush. He unified all of Upper Nubia from Meroë to the Third Cataract and is possibly attested at the Temple of Amun at Kawa. Alara also established Napata as the religious capital of Kush. Alara himself was not a 25th dynasty Kushite king since he never controlled any region of Egypt during his reign compared to his two immediate successors: Kashta and Piye respectively. Nubian literature credits him with a substantial reign since future Nubian kings requested that they might enjoy a reign as long as Alara's. His memory was also central to the origin myth of the Kushite kingdom, which was embellished with new elements over time. Alara was a deeply revered figure in Nubian culture and the first Kushite king whose name came down to scholars.
The National Museum of Sudan or Sudan National Museum, abbreviated SNM, is a two-story building, constructed in 1955 and established as national museum in 1971.
The region of Semna is 15 miles south of Wadi Halfa and is situated where rocks cross the Nile narrowing its flow—the Semna Cataract.
Nubia is a region along the Nile river encompassing the area between the first cataract of the Nile and the confluence of the Blue and White Niles, or more strictly, Al Dabbah. It was the seat of one of the earliest civilizations of ancient Africa, the Kerma culture, which lasted from around 2500 BC until its conquest by the New Kingdom of Egypt under Pharaoh Thutmose I around 1500 BC, whose heirs ruled most of Nubia for the next 400 years. Nubia was home to several empires, most prominently the Kingdom of Kush, which conquered Egypt in the eighth century BC during the reign of Piye and ruled the country as its 25th Dynasty.
The Kingdom of Kush, also known as the Kushite Empire, or simply Kush, was an ancient kingdom in Nubia, centered along the Nile Valley in what is now northern Sudan and southern Egypt.
The Nile Basin is the part of Africa drained by the Nile River and its tributaries.
The geographical region of ancient Nubia covers the area from the First Cataract at Aswan in the north, to the Blue and White Niles at Khartoum in the south, and adjacent deserts. The region includes the Nile Valley of lower Egypt and nowadays Sudan. The earliest history of Nubia dates to the Paleolithic period, and the civilization of ancient Nubia developed alongside ancient Egypt on the Nile valley. Both Egypt and Nubia are characterized by their distinct cultural identities and had lots of interactions—military, political, and commercial—throughout history. Prior to Roman contact, Kush had trade relations with Ptolemaic Egypt. The early interaction between Rome and the kingdom of Kush in Nubia was full of tensions and conflicts before Caesar Augustus established a peace treaty with Kush. Nubia thereby flourished for nearly three centuries through trade with Roman Egypt. Archaeological excavations and written accounts by Classical authors such as Strabo, Pliny the Elder, and Diodorus are important sources of information about Roman relations with Nubia.
Upper Nubia is the southernmost part of Nubia, upstream on the Nile from Lower Nubia. It is so called because the Nile flows north, so it is further upstream and of higher elevation in relation to Lower Nubia.
The Sudan Archaeological Research Society is a registered British charity based in London, UK. It was founded in 1991 to study the history and culture of Sudan and expanded its remit in 2011 to include the newly independent South Sudan. The society has surveyed and excavated numerous archaeological sites across Sudan, and disseminates its research through publications and events.
Nubia is a region along the Nile river encompassing the area between the first cataract of the Nile as well as the confluence of the blue and white Niles or, more strictly, Al Dabbah. Nubia was the seat of several civilizations of ancient Africa, including the Kerma culture, the kingdom of Kush, Nobatia, Makuria and Alodia.