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Haya People
The Haya (or Bahaya) are a Bantu ethnic group based in Kagera Region, northwestern Tanzania, on the western side of Lake Victoria. With over one million people, it is estimated the Haya make up approximately 2% of the population of Tanzania. Historically, the Haya have had a complex kingship-based political system. Agriculture, particularly banana farming, is central to Haya economic life. They are credited with the independent development of carbon steel dating to 2000 years ago using pre-heating techniques. Etymology According to Hans Cory, the term ( Haya for fisher-people) was originally used to differentiate the Haya from the Banyambo of Karagwe. This distinction is said to be based on cultural differences, with the Haya economy predominantly oriented toward fishing and other industries on Lake Victoria and the Banyambo predominately engaged in pastoralism. Other sources on the origin of the term Haya cite oral accounts that state it derives from a goddess named Muhaya, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haya Language
Haya (''Oluhaya''; Swahili: ''Kihaya'') is a Bantu language spoken by the Haya people of Tanzania, in the south and southwest coast of Lake Victoria. In 1991, the population of Haya speakers was estimated at 1,200,000 peopl Its closest relative is the Nyambo language and it is also closely related to the languages of southwest Uganda such as Nkore-Kiga, Rutooro and Runyoro which all form a group called Rutara. Maho (2009) classifies JE221 Rashi as closest to Haya. It has no ISO 639-1 or ISO 639-2 code, but is included in ISO 639-3 as hay. Phonology Consonants Vowels When a high vowel /i, u/ precedes a non-high vowel, it is realized as an approximant sound , w Tones Two tones are present in Haya; high /v́/ and low /v̀/. Grammar Tense Haya has nine tenses. These are the present progressive, the present habitual, the past habitual and the perfect, alongside two future tenses and three past tenses. The future tense F2 refers to the distant future whilst F1 r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banana
A banana is an elongated, edible fruit – botanically a berry – produced by several kinds of large herbaceous flowering plants in the genus ''Musa''. In some countries, bananas used for cooking may be called "plantains", distinguishing them from dessert bananas. The fruit is variable in size, color, and firmness, but is usually elongated and curved, with soft flesh rich in starch covered with a rind, which may be green, yellow, red, purple, or brown when ripe. The fruits grow upward in clusters near the top of the plant. Almost all modern edible seedless ( parthenocarp) bananas come from two wild species – ''Musa acuminata'' and ''Musa balbisiana''. The scientific names of most cultivated bananas are ''Musa acuminata'', ''Musa balbisiana'', and ''Musa'' × ''paradisiaca'' for the hybrid ''Musa acuminata'' × ''M. balbisiana'', depending on their genomic constitution. The old scientific name for this hybrid, ''Musa sapientum'', is no longer used. ''Musa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Great Lakes
The African Great Lakes ( sw, Maziwa Makuu; rw, Ibiyaga bigari) are a series of lakes constituting the part of the Rift Valley lakes in and around the East African Rift. They include Lake Victoria, the second-largest fresh water lake in the world by area, Lake Tanganyika, the world's second-largest freshwater lake by volume and depth, and Lake Malawi, the world's eighth-largest fresh water lake by area. Collectively, they contain 31,000 km3 (7400 cu mi) of water, which is more than either Lake Baikal or the North American Great Lakes. This total constitutes about 25% of the planet's unfrozen surface fresh water. The large rift lakes of Africa are the ancient home of great biodiversity, and 10% of the world's fish species live in this region. Riparian countries in the African Great Lakes region include: Burundi, the Democratic Republic of the Congo, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Zambia, Tanzania, and Uganda. Lakes and drainage basins The following are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuber
Tubers are a type of enlarged structure used as storage organs for nutrients in some plants. They are used for the plant's perennation (survival of the winter or dry months), to provide energy and nutrients for regrowth during the next growing season, and as a means of asexual reproduction. ''Stem tubers'' form thickened rhizomes (underground stems) or stolons (horizontal connections between organisms); well known species with stem tubers include the potato and yam. Some writers also treat modified lateral roots (''root tubers'') under the definition; these are found in sweet potatoes, cassava, and dahlias. Terminology The term originates from the Latin , meaning "lump, bump, swelling". Some writers define the term "tuber" to mean only structures derived from stems; others use the term for structures derived from stems or roots., p. 124 Stem tubers A stem tuber forms from thickened rhizomes or stolons. The top sides of the tuber produce shoots that grow into typical stems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sorghum
''Sorghum'' () is a genus of about 25 species of flowering plants in the grass family (Poaceae). Some of these species are grown as cereals for human consumption and some in pastures for animals. One species is grown for grain, while many others are used as fodder plants, either cultivated in warm climates worldwide or naturalized in pasture lands. Taxonomy ''Sorghum'' is in the Poaceae (grass) subfamily Panicoideae and the tribe Andropogoneae (the same as maize, big bluestem and sugarcane). Species Accepted species recorded include: Distribution and habitat Seventeen of the 25 species are native to Australia, with the range of some extending to Africa, Asia, Mesoamerica, and certain islands in the Indian and Pacific Oceans. Toxicity In the early stages of the plants' growth, some species of sorghum can contain levels of hydrogen cyanide, hordenine, and nitrates, which are lethal to grazing animals. Plants stressed by drought or heat can also contain toxic lev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eleusine Coracana
''Eleusine coracana'', or finger millet, also known as ragi in India, kodo in Nepal, is an annual herbaceous plant widely grown as a cereal crop in the arid and semiarid areas in Africa and Asia. It is a tetraploid and self-pollinating species probably evolved from its wild relative ''Eleusine africana''. Finger millet is native to the Ethiopian and Ugandan highlands. Interesting crop characteristics of finger millet are the ability to withstand cultivation at altitudes over 2000 m above sea level, its high drought tolerance, and the long storage time of the grains. History Finger millet originated in East Africa (Ethiopian and Ugandan highlands). It was claimed to have been found in an Indian archaeological site dated to 1800 BCE (Late Bronze Age); however, this was subsequently demonstrated to be incorrectly identified cleaned grains of hulled millets. The oldest record of finger millet comes from an archaeological site in Africa dating to the 8th century AD. By 1996, culti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Victoria
Lake Victoria is one of the African Great Lakes. With a surface area of approximately , Lake Victoria is Africa's largest lake by area, the world's largest tropical lake, and the world's second-largest fresh water lake by surface area after Lake Superior in North America. In terms of volume, Lake Victoria is the world's ninth-largest continental lake, containing about of water. Lake Victoria occupies a shallow depression in Africa. The lake has an average depth of and a maximum depth of .United Nations, ''Development and Harmonisation of Environmental Laws Volume 1: Report on the Legal and Institutional Issues in the Lake Victoria Basin'', United Nations, 1999, page 17 Its catchment area covers . The lake has a shoreline of when digitized at the 1:25,000 level, with islands constituting 3.7% of this length. The lake's area is divided among three countries: Kenya occupies 6% (), Uganda 45% (), and Tanzania 49% (). Though having multiple local language names ( luo, Nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Iron Age
The Iron Age is the final epoch of the three-age division of the prehistory and protohistory of humanity. It was preceded by the Stone Age (Paleolithic, Mesolithic, Neolithic) and the Bronze Age (Chalcolithic). The concept has been mostly applied to Iron Age Europe and the Ancient Near East, but also, by analogy, to other parts of the Old World. The duration of the Iron Age varies depending on the region under consideration. It is defined by archaeological convention. The "Iron Age" begins locally when the production of iron or steel has advanced to the point where iron tools and weapons replace their bronze equivalents in common use. In the Ancient Near East, this transition took place in the wake of the Bronze Age collapse, in the 12th century BC. The technology soon spread throughout the Mediterranean Basin region and to South Asia (Iron Age in India) between the 12th and 11th century BC. Its further spread to Central Asia, Eastern Europe, and Central Europe is somewhat dela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northeast Bantu Languages
The Northeast Bantu languages are a group of Bantu languages spoken in East Africa. In Guthrie's geographic classification, they fall within Bantu zones E50 plus E46 (Sonjo), E60 plus E74a (Taita), F21–22, J, G60, plus Northeast Coast Bantu (of zones E & G).Derek Nurse, 2003, ''The Bantu Languages'' Some of these languages (F21, most of E50, and some of J) share a phonological innovation called Dahl's law that is unlikely to be borrowed as a productive process, though individual words reflecting Dahl's law have been borrowed into neighboring languages. The languages, or clusters, are: *Kikuyu–Kamba Thagiicu (primarily E50): ** Sonjo (E40) ** Cuka **Meru (incl. Tharaka, Mwimbi-Muthambi) **South ***Kamba, Daisu *** Gikuyu, Embu *Chaga–Taita **Taita (Dawida; E70) – Sagalla **Chaga languages (E60) *Northeast Coast Bantu (G10-G40): Swahili (E70), ''etc.'' *Takama: Sukuma– Nyamwezi (+ Konongo–Ruwila), Kimbu (F20), Iramba–Isanzu, Nyaturu (Rimi) (F30), ? Holohol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urewe
The Urewe culture developed and spread in and around the Lake Victoria region of Africa during the African Iron Age. The culture's earliest dated artefacts are located in the Kagera Region of Tanzania, and it extended as far west as the Kivu region of the Democratic Republic of the Congo, as far east as the Nyanza and Western provinces of Kenya, and north into Uganda, Rwanda and Burundi. Sites from the Urewe culture date from the Early Iron Age, from the 5th century BC to the 6th century AD. the Urewe people certainly did not disappear, and the continuity of institutional life was never completely broken. One of the most striking things about the Early Iron Age pots and smelting furnaces is that some of them were discovered at sites that the local people still associate with royalty, and still more significant is the continuity of language. Chronology This civilisation emerges in the region during the transition from the second to the first millennium B.C. and seems to h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelting
Smelting is a process of applying heat to ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including silver, iron, copper, and other base metals. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures due to the lower potential energy of the bonds in carbon dioxide (). Smelting most prominently takes place in a blast furnace to produce pig iron, which is converted into steel. The carbon source acts as a chemical reactant to remove oxygen from the ore, yielding the purified metal element as a product. The carbon source is oxidized in two stages. First, the carbon (C) combusts with oxygen (O2) in the air to produce carbon monoxide (CO). Second, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bantu Expansion
The Bantu expansion is a hypothesis about the history of the major series of migrations of the original Proto-Bantu-speaking group, which spread from an original nucleus around Central Africa across much of sub-Saharan Africa. In the process, the Proto-Bantu-speaking settlers displaced or absorbed pre-existing hunter-gatherer and pastoralist groups that they encountered. The primary evidence for this expansion is linguistic – a great many of the languages which are spoken across Sub-Equatorial Africa are remarkably similar to each other, suggesting the common cultural origin of their original speakers. The linguistic core of the Bantu languages, which comprise a branch of the Atlantic-Congo language family, was located in the southern regions of Cameroon. However, attempts to trace the exact route of the expansion, to correlate it with archaeological evidence and genetic evidence, have not been conclusive; thus although the expansion is widely accepted as having taken place, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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