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Koumbi-Saleh
Koumbi Saleh, sometimes Kumbi Saleh is the site of a ruined medieval town in south east Mauritania that may have been the capital of the Ghana Empire. From the ninth century, Arab authors mention the Ghana Empire in connection with the trans-Saharan gold trade. Al-Bakri who wrote in eleventh century described the capital of Ghana as consisting of two towns apart, one inhabited by Muslim merchants, and the other by the king of Ghana. The discovery in 1913 of a 17th-century African chronicle that gave the name of the capital as Koumbi led French archaeologists to the ruins at Koumbi Saleh. Excavations at the site have revealed the ruins of a large Muslim town with houses built of stone and a congregational mosque but no inscription to unambiguously identify the site as that of capital of Ghana. Ruins of the king's town described by al-Bakri have not been found. Radiocarbon dating suggests that the site was occupied between the late 9th and 14th centuries. Arabic sources and the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghana Empire
The Ghana Empire, also known as Wagadou ( ar, غانا) or Awkar, was a West African empire based in the modern-day southeast of Mauritania and western Mali that existed from c. 300 until 1100. The Empire was founded by the Soninke people, and was based in the capital city of Koumbi Saleh. Complex societies, some based on trans-Saharan trade in salt and gold had existed in the region for centuries at the time of the empire's formation. The introduction of the camel to the western Sahara in the 3rd century AD served as a major catalyst for the transformative social changes that resulted in the empire's formation. By the time of the Muslim conquest of North Africa in the 7th century the camel had changed the ancient, more irregular trade routes into a trade network running from Morocco to the Niger River. The Ghana Empire grew rich from this increased trans-Saharan trade in gold and slaves and salt, allowing for larger urban centers to develop. The traffic furthermore encourag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mauritania
Mauritania (; ar, موريتانيا, ', french: Mauritanie; Berber: ''Agawej'' or ''Cengit''; Pulaar: ''Moritani''; Wolof: ''Gànnaar''; Soninke:), officially the Islamic Republic of Mauritania ( ar, الجمهورية الإسلامية الموريتانية), is a sovereign country in West Africa. It is bordered by the Atlantic Ocean to the west, Western Sahara to the north and northwest, Algeria to the northeast, Mali to the east and southeast, and Senegal to the southwest. Mauritania is the 11th-largest country in Africa and the 28th-largest in the world, and 90% of its territory is situated in the Sahara. Most of its population of 4.4 million lives in the temperate south of the country, with roughly one-third concentrated in the capital and largest city, Nouakchott, located on the Atlantic coast. The country's name derives from the ancient Berber kingdom of Mauretania, located in North Africa within the ancient Maghreb. Berbers occupied what is now Mauritania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schist
Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes or plates. This texture (geology), texture reflects a high content of platy minerals, such as micas, talc, chlorite group, chlorite, or graphite. These are often interleaved with more granular minerals, such as feldspar or quartz. Schist typically forms during regional metamorphism accompanying the process of mountain building (orogeny) and usually reflects a medium Metamorphism#Metamorphic grades, grade of metamorphism. Schist can form from many different kinds of rocks, including sedimentary rocks such as mudstones and igneous rocks such as tuffs. Schist metamorphosed from mudstone is particularly common and is often very rich in mica (a ''mica schist''). Where the type of the original rock (the protolith) is discernible, the schist is us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia
''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus name is New Latin, borrowed from the Greek (), a term used by Dioscorides for a preparation extracted from the leaves and fruit pods of ''Vachellia nilotica'', the original type of the genus. In his ''Pinax'' (1623), Gaspard Bauhin mentioned the Greek from Dioscorides as the origin of the Latin name. In the early 2000s it had become evident that the genus as it stood was not monophyletic and that several divergent lineages needed to be placed in separate genera. It turned out that one lineage comprising over 900 species mainly native to Australia, New Guinea, and Indonesia was not closely related to the much smaller group of African lineage that contained ''A. nilotica''—the type species. This meant that the Australasian lineage (by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nara, Mali
Nara ( Bambara: ߣߊߙߊ tr. Nara) is a town and rural commune in the Koulikoro Region of southwestern Mali. The town is the administrative center of the Nara Cercle. It is about , south of the international border with Mauritania and approximately , by road, northeast of the Malian capital, Bamako Bamako ( bm, ߓߡߊ߬ߞߐ߬ ''Bàmakɔ̌'', ff, 𞤄𞤢𞤥𞤢𞤳𞤮 ''Bamako'') is the Capital city, capital and largest city of Mali, with a 2009 population of 1,810,366 and an estimated 2022 population of 2.81 million. It is located on t .... The rural commune covers an area of and includes the town and 16 surrounding villages.. In the 2009 census the commune had a population of 19,793. References External links *. Communes of Koulikoro Region {{Koulikoro-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siguiri
Siguiri (N'Ko script, N’ko: ߛߌ߯ߙߌ߲߫ ; Arabic: سِجِرِ ِ) is a city in northeastern Guinea on the River Niger. It is a Sub-prefectures of Guinea, sub-prefecture and capital of Siguiri Prefecture in the Kankan Region. Its population was estimated at 28,319 in 2008. It is known for its goldsmiths and as the birthplace of Sekouba Bambino Diabaté. Placer gold is mined here. North and northwest of Siguiri, and along the Tinkisso River, is the Bouré region. This region replaced Bambouk as a major gold producer in the 11th-12th centuries. Gold is also found along the Sankarani River. This is the place where Sundiata Keita fought Soumaoro Kanté, and located here is a former France, French fort built in 1888, and the Siguiri Airport. Climate Siguiri has a tropical savanna climate (Köppen climate classification ''Aw''). See also *Birimian References External links Spinning around the source. Slumbering stories in and around Siguiri. Article by Rachel Laget base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Nugget
:''"Gold nugget" may also refer to the catfish Baryancistrus xanthellus or the mango cultivar Gold Nugget.'' A gold nugget is a naturally occurring piece of native gold. Watercourses often concentrate nuggets and finer gold in placers. Nuggets are recovered by placer mining, but they are also found in residual deposits where the gold-bearing veins or lodes are weathered. Nuggets are also found in the tailings piles of previous mining operations, especially those left by gold mining dredges. Formation Nuggets are gold fragments weathered out of an original lode. They often show signs of abrasive polishing by stream action, and sometimes still contain inclusions of quartz or other lode matrix material. A 2007 study on Australian nuggets ruled out speculative theories of supergene formation via in-situ precipitation, cold welding of smaller particles, or bacterial concentration, since crystal structures of all of the nuggets examined proved they were originally formed at high tem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinar
The dinar () is the principal currency unit in several countries near the Mediterranean Sea, and its historical use is even more widespread. The modern dinar's historical antecedents are the gold dinar and the silver dirham, the main coin of the medieval Islamic empires, first issued in AH 77 (696–697 CE) by Caliph Abd al-Malik ibn Marwan. The word "dinar" derives from the Latin " ''dēnārius''," a silver coin of ancient Rome, which was first minted about c.211 BCE. The English word "dinar" is the transliteration of the Arabic دينار (''dīnār''), which was borrowed via the Syriac ''dīnarā'', itself from the Latin ''dēnārius''. The Kushan Empire introduced a gold coin known as the ''dīnāra'' into India in the 1st century AD; the Gupta Empire and its successors up to the 6th century adopted the coin. The modern gold dinar is a projected bullion gold coin, not issued as official currency by any state. Legal tender Countries currently usi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maghrib
The Maghrib Prayer ( ar, صلاة المغرب ', "sunset prayer") is one of the five mandatory salah (Islamic prayer). As an Islamic day starts at sunset, the Maghrib prayer is technically the first prayer of the day. If counted from midnight, it is the fourth prayer of the day.see 'Glossary' Retrieved 12 July 2020Significance of Offering The Isha Prayer and Its Benefits QuranReading website, Published 29 January 2015, Retrieved 14 May 2017 According to Sunni Muslims, the period for Maghrib prayer starts just after |
