Facts about River Nile

9 Interesting Facts About the Nile River

The Nile is one of the most famous rivers anywhere on our planet, and rightfully so. While all rivers are important for people and wildlife who live nearby, the Nile looms especially large, both literally and figuratively.

The Nile flows north for about 6,650 kilometers (4,132 miles), from the African Great Lakes through the Sahara desert before emptying into the Mediterranean Sea. It goes through 11 countries — Tanzania, Uganda, Rwanda, Burundi, the Democratic Republic of the Congo, Kenya, Ethiopia, Eritrea, South Sudan, Sudan and Egypt — and drains 3.3 million square kilometers (1.3 million miles), or about 10% of the African continent. (The map at right, a composite of NASA satellite images, spans from Lake Victoria to the Nile Delta.)

The Nile is widely considered Earth’s longest river, but that title isn’t as simple as it sounds. Aside from just measuring, it also depends on how we decide where each begins and ends, which can be tricky in big, complex river systems.

Scientists tend to go by the longest continuous channel in a system, but that may still leave room for ambiguity. The Nile is only slightly longer than the Amazon River, for example, and in 2007 a team of Brazilian scientists announced they had remeasured the Amazon and found it to be 6,800 km (4,225 miles) long, thus dethroning the Nile. Their study wasn’t published, though, and as Live Science points out, many scientists are skeptical about its methods. The Nile is still generally credited as the world’s longest river, by sources from the United to the Guinness Book of World Records, although the Amazon also boasts plenty of superlatives, including the world’s largest river by volume, since it holds about 20% of Earth’s freshwater.

2. There’s more than one Nile.

The Lower Nile historically flooded in summer, which mystified early Egyptians, especially since it almost never rained where they lived. We now know, however, that despite being one river in Egypt, the Nile is fed by much rainier places to the south, and its hydrology is driven by at least two ” hydraulic” regimes upstream.

The Nile has three main tributaries: the White Nile, Blue Nile and Atbara. The White Nile is the longest, starting with streams that flow into Lake Victoria, the world’s largest tropical lake. It emerges as the Victoria Nile, then traverses swampy Lake Kyoga and Murchison (Kabalega) Falls before reaching Lake Albert (Mwitanzige). It continues north as the Albert Nile (Mobutu), later becoming the Mountain Nile (Bahr al Jabal) in South Sudan, and joins the Gazelle River (Bahr el Ghazal), after which it’s called the White Nile (Bahr al Abyad). It finally becomes just “the Nile” near Khartoum, Sudan, where it meets the Blue Nile.

The White Nile flows steadily all year, while the Blue Nile fits most of its work into a few wild months each summer. Along with the nearby Atbara, its water comes from the highlands of Ethiopia, where monsoon patterns cause both rivers to shift between a summer torrent and winter trickle. The White Nile may be longer and steadier, but the Blue Nile supplies nearly 60% of the water that reaches Egypt each year, mostly during summer. The Atbara joins in later with 10% of the Nile’s total flow, almost all of which arrives between July and October. It was these rains that flooded the Nile each year in Egypt, and because they eroded basalt lavas on their way out of Ethiopia, their water turned out to be especially valuable downstream.

3. People spent centuries searching for its source

Ancient Egyptians revered the Nile as their source of life, but it was inevitably shrouded in mystery. It would be for centuries, too, as expeditions repeatedly failed to find its source, with Egyptians, Greeks and Romans often foiled by a region called the Sudd (in what’s now South Sudan), where the Nile forms a vast swamp. This fed the river’s mystique, and it’s why classical Greek and Roman art sometimes portrayed it as a god with a hidden face

The Blue Nile gave up its secrets first, and an expedition from ancient Egypt may have even traced it back to Ethiopia. The White Nile’s source proved much more elusive, though, despite many efforts to find it — including those by Scottish explorer , David Livingstone  who was rescued from one mission in 1871 by Welsh journalist Henry Morton Stanley, via the famous quote “Dr. Livingstone, I presume?” European explorers had only recently found Lake Victoria, and after Livingstone’s death in 1873, Stanley was one of many who helped confirm its link to the Nile, along with the prolific East African guide and explorer Sidi Mubarak Bombay

The search still hadn’t ended, however. The White Nile begins even before Lake Victoria, although not everyone agrees where. There is the Kagera River, which flows into Lake Victoria from Lake Rweru in Burundi, but it too receives water from two other tributaries: the Ruvubu and the Nyabarongo, which flows into Lake Rweru. The Nyabarongo is also fed by the Mbirurume and Mwogo rivers, which arise from Rwanda’s Nyungwe Forest, and some cite this as the farthest source of the Nile.

4. It takes a strange detour in the desert.

After stubbornly pushing north for most of its course, the Nile takes a surprising turn in the midst of the Sahara. With its main tributaries finally united, it continues north through Sudan for a while, then abruptly turns southwest and starts flowing away from the sea. It goes on like this for about 300 km (186 miles), as if it’s heading back to Central Africa instead of Egypt.

It eventually gets back on track, of course, and crosses Egypt as one of the most famous and influential rivers on Earth. But why does it take such a big detour first? Known as the “Great Bend” this is one of several features caused by a huge underground rock formation called the Nubian Swell Formed by tectonic uplift over millions of years, it forced this dramatic curve and formed .  the cataracts of the Nile .If not for relatively recent uplift by the Nubian Swell, “these rocky rivers stretches would have been quickly reduced by the abrasive action of the sediment-laden Nile,” according to   geological overview by the University of Texas at Dallas.

5. Its mud helped shape human history.

As it winds into Egypt, the Nile transforms a swath of Sahara desert along its banks. This contrast is visible from space, where a long, green oasis can be seen hugging the river amid the bleakly tan landscape around it.

The Sahara is the largest hot desert on Earth, smaller only than our two polar deserts, and it’s no small feat to change it this way. Thanks to its seasonal influx of water from Ethiopia, the Lower Nile has historically flooded in summer, soaking the desert soil in its floodplain. But water didn’t tame the Sahara alone. The Nile also brought a secret ingredient: all the sediment it collected along the way, mainly black silt eroded by the Blue Nile and Atbara from basalt in Ethiopia. Those silty floodwaters would surge into Egypt each summer, then dry up and leave behind a miraculous black mud.


Permanent human settlements first appeared on the Nile’s banks around 6000 BCE,  according to the nonprofit Ancient History Encycloedia (AHE), and by 3150 BCE, those settlements had become “the world’s first recognizable nation state.” A complex and distinct culture quickly developed, and for nearly 3,000 years, Egypt would remain the preeminent nation in the Mediterranean world, fueled by water and fertile land it received as gifts from the Nile.

Egypt was eventually conquered and eclipsed by other empires, yet despite its decline, it still thrives with help from the Nile. It’s now home to nearly 100 million people — – 95% of whom live within a few kilometers of the Nile — making it the third most populous country in Africa. And since it also teems with relics of its heyday, like elaborate pyramids and well-preserved mummies, it continues to reveal ancient secrets and capture modern imaginations. All this would’ve been nearly impossible in this desert without the Nile, and considering the role Egypt has played in the rise of civilization, the Nile has influenced human history in a way few rivers have.


6. It’s a haven for wildlife, too.

Humans are just one of many species who rely on the Nile, which flows through (and influences) a variety of ecosystems along its course. Closer to the White Nile’s headwaters, the river plies biodiverse tropical rainforests teeming with plants like banana trees, bamboo, coffee shrubs and ebony, to name a few. It reaches mixed woodland and savanna farther north, with sparser trees and more grasses and shrubs. It becomes a sprawling swamp in the Sudanese plains during the rainy season, especially the legendary Sudd in South Sudan, which spans nearly 260,000 square km (100,000 square miles). Vegetation continues to fade as it moves north, finally all but vanishing as the river arrives in the desert.

One of the most notable Nile plants is papyrus, an aquatic flowering sedge that grows as tall reeds in shallow water. These are the plants that ancient Egyptians famously  used to make paper(and from which the English word “paper” is derived) as well as cloths, cords, mats, sails and other materials. It once was a common part of the river’s native vegetation, and while it still grows naturally in Egypt, it’s reportedly less common in the wild today.

7. It was home to a crocodile god and a Crocodile City.

As ancient Egypt grew along the Lower Nile, the river’s importance was not lost on its people, who made it a central theme of their society. Ancient Egyptians knew the Nile as Ḥ’pī or Iteru, meaning simply “river,” but it was also called Ar or Aur, meaning “black,” in honor of its life-giving mud. They correctly saw it as their source of life, and it played a key role in many of their most important myths.

The Milky Way was seen as a celestial mirror of the Nile, for example, and the sun god Ra was believed to drive his ship across it. It was thought to embody the god Hapi, who blessed the land with life, as well as Ma’at, who represented the concepts of truth, harmony and balance, according to the AHE. It was also associated with Hathor, a goddess of the sky, women, fertility and love.

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A Young Entreprenuer and CEO Inspire African Safaris Formerly Airways Tours & Travel, Member of (AUTO) Association of Uganda Tour Operators and Top Director of Inspire Lodges. A Relative Youth and God Fearing Gentle Man.