paragraph_text: Mayombe (or Mayumbe) is a geographic area on the western coast of Africa occupied by low mountains extending from the mouth of the Congo River in the south to the Kouilou-Niari River to the north. The area includes parts of the Democratic Republic of the Congo, Angola (Cabinda Province), the Republic of the Congo and Gabon.

paragraph_text: The Luvua River (or "Lowa River") is a river in the Katanga Province of the Democratic Republic of the Congo (DRC). It flows from the northern end of Lake Mweru on the Zambia-Congo border in a northwesterly direction for to its confluence with the Lualaba River opposite the town of Ankoro. The Lualaba becomes the Congo River below the Boyoma Falls.

paragraph_text: In the late 19th century, the European imperial powers engaged in a major territorial scramble and occupied most of the continent, creating many colonial territories, and leaving only two fully independent states: Ethiopia (known to Europeans as ``Abyssinia ''), and Liberia. Egypt and Sudan were never formally incorporated into any European colonial empire; however, after the British occupation of 1882, Egypt was effectively under British administration until 1922.

paragraph_text: The river then follows a roughly southwest and then west - northwest course until Cincinnati, before bending to a west - southwest course for most of its length. The course forms the northern borders of West Virginia and Kentucky; and the southern borders of Ohio, Indiana and Illinois, until it joins the Mississippi River at the city of Cairo, Illinois.

paragraph_text: Bobeke is a village in the Lobaye region in the Central African Republic southwest of the capital, Bangui and near the border with the Democratic Republic of the Congo.

paragraph_text: The Mississippi River is the chief river of the second - largest drainage system on the North American continent, second only to the Hudson Bay drainage system. The stream is entirely within the United States (although its drainage basin reaches into Canada), its source is Lake Itasca in northern Minnesota and it flows generally south for 2,320 miles (3,730 km) to the Mississippi River Delta in the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 31 U.S. states and two Canadian provinces between the Rocky and Appalachian Mountains. The Mississippi ranks as the fourth - longest and fifteenth - largest river in the world by discharge. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana.

paragraph_text: The Chattahoochee River forms the southern half of the Alabama and Georgia border, as well as a portion of the Florida border. It is a tributary of the Apalachicola River, a relatively short river formed by the confluence of the Chattahoochee and Flint rivers and emptying from Florida into Apalachicola Bay in the Gulf of Mexico. The Chattahoochee River is about 430 miles (690 km) long. The Chattahoochee, Flint, and Apalachicola rivers together make up the Apalachicola -- Chattahoochee -- Flint River Basin (ACF River Basin). The Chattahoochee makes up the largest part of the ACF's drainage basin.

paragraph_text: Angola is located on the western Atlantic Coast of Central Africa between Namibia and the Republic of the Congo. It also is bordered by the Democratic Republic of the Congo and Zambia to the east. The country consists of a sparsely watered and somewhat sterile coastal plain extending inland for a distance varying from . Slightly inland and parallel to the coast is a belt of hills and mountains and behind those a large plateau. The total land size is . It has an Exclusive Economic Zone of .

paragraph_text: Sustut Peak, 2481 m (8140 ft), prominence: 1231 m, is the highest summit in the drainage of the Sustut River in British Columbia, Canada. Located in the Hogem Ranges west of Sustut Lake, which is at the Sustut River's headwaters, it is 8 km southwest of the road to the Kemess Mine

paragraph_text: Congo is located in the central-western part of sub-Saharan Africa, along the Equator, lying between latitudes 4°N and 5°S, and longitudes 11° and 19°E. To the south and east of it is the Democratic Republic of Congo. It is also bounded by Gabon to the west, Cameroon and the Central African Republic to the north, and Cabinda (Angola) to the southwest. It has a short coast on the Atlantic Ocean.

paragraph_text: The Mississippi River is the chief river of the second - largest drainage system on the North American continent, second only to the Hudson Bay drainage system. Flowing entirely in the United States (although its drainage basin reaches into Canada), it rises in northern Minnesota and meanders slowly southwards for 2,320 miles (3,730 km) to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 31 U.S. states and 2 Canadian provinces between the Rocky and Appalachian Mountains. The Mississippi ranks as the fourth - longest and fifteenth - largest river in the world by discharge. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana.

paragraph_text: The Geehi River rises below Mount Jagungal, part of Strumbo Range within the Kosciuszko National Park, and flows generally southwest before reaching its confluence with the Swampy Plain River, below Mount Youngal, near the locality of Geehi. The river descends over its course.

paragraph_text: The Republic of the Congo (French: République du Congo), also known as Congo, Congo Republic, West Congo[citation needed], or Congo-Brazzaville, is a country located in Central Africa. It is bordered by five countries: Gabon to the west; Cameroon to the northwest; the Central African Republic to the northeast; the Democratic Republic of the Congo to the east and south; and the Angolan exclave of Cabinda to the southwest.

paragraph_text: Gibson Lake is a lake in geographic Biggar Township, Nipissing District in Northeastern Ontario, Canada. It is in the Saint Lawrence River drainage basin and lies within Algonquin Provincial Park. The major outflow, at the southwest, is Gibson Creek which flows to the Nipissing River, and then via the Petawawa River and the Ottawa River to the Saint Lawrence River.

paragraph_text: Beaumont lies on Texas' coastal plain, about 30 miles (48 km) inland from the Gulf of Mexico, one hour drive east of Houston, and just south of the dense pine forests of East Texas. The city is bordered on the east by the Neches River and to the north by Pine Island Bayou. Before being settled, the area was crisscrossed by numerous small streams. Most of these streams have since been filled in or converted for drainage purposes. The island directly across from Riverfront Park is called Trinity Island. There are also three other islands in the Neches River around the downtown area / port: Harbor, Smith and Clark.

paragraph_text: The southwest of the country is a coastal plain for which the primary drainage is the Kouilou-Niari River; the interior of the country consists of a central plateau between two basins to the south and north. Forests are under increasing exploitation pressure.

paragraph_text: The Red River is the second - largest river basin in the southern Great Plains. It rises in two branches in the Texas Panhandle and flows east, where it acts as the border between the states of Texas and Oklahoma. It forms a short border between Texas and Arkansas before entering Arkansas, turning south near Fulton, Arkansas, and flowing into Louisiana, where it flows into the Atchafalaya River. The total length of the river is 1,360 miles (2,190 km), with a mean flow of over 57,000 cubic feet per second (1,600 m / s) at the mouth.

paragraph_text: The Mongala River in northern Democratic Republic of the Congo is a tributary of the Congo River. The Ebola River forms the headstream of the Mongala River.

paragraph_text: Fort Clatsop was the encampment of the Lewis and Clark Expedition in the Oregon Country near the mouth of the Columbia River during the winter of 1805 - 1806. Located along the Lewis and Clark River at the north end of the Clatsop Plains approximately 5 miles (8.0 km) southwest of Astoria, the fort was the last encampment of the Corps of Discovery, before embarking on their return trip east to St. Louis.

paragraph_text: Pingtung Plain () is a plain area including parts of Pingtung County and Kaohsiung City in Taiwan. It includes the alluvial fan of Kaoping River, which forms the largest drainage area of rivers in Taiwan, and also passed by other shorter rivers such as Tungkang River, Linbian River and Shihwen River (士文溪). The plain faces the Taiwan Strait on the southwest, lies to the east of Kaohsiung City, and at the west of Central Mountain Range.

Question: Who created the political borders of the continent that contains the river that serves as drainage for the southwest plain of the Congo?
Answer: European imperial powers