Arky 335 - Sep 7th

Physical and Geographic Overview of Africa

Key Natural and Urban Features:
- Namib Desert: A prominent coastal desert located along the southwestern Atlantic coast of Africa.
- Mount Kilimanjaro: A major snow-capped volcanic mountain in East Africa, serving as the highest peak on the continent.
- Victoria Falls: A massive waterfall situated on the Zambezi River on the border between Zambia and Zimbabwe.
- Dar es Salaam: A principal port city and commercial hub on the coast of Tanzania in East Africa.

Continental Scale, Demographics, and Major Urban Centers

Comparative Continental Land Area:
- Asia: Area = $44,579,000\,km^2$ ; Percent of Total Land Area = $29.7\%$
- Africa: Area = $30,370,000\,km^2$ ; Percent of Total Land Area = $20.2\%$
- North America: Area = $24,709,000\,km^2$ ; Percent of Total Land Area = $16.4\%$
- South America: Area = $17,840,000\,km^2$ ; Percent of Total Land Area = $11.9\%$
- Antarctica: Area = $14,000,000\,km^2$ ; Percent of Total Land Area = $9.3\%$
- Europe: Area = $10,180,000\,km^2$ ; Percent of Total Land Area = $6.8\%$
- Australia: Area = $8,560,000\,km^2$ ; Percent of Total Land Area = $5.7\%$

True geographic scale of Africa relative to other nations

Political Entities and Demographics:
- Number of Countries: $54$ recognized countries (along with $2$ disputed territories).
- Total Population (2016): $1,225,080,510$
- Largest Urban Agglomerations / Cities:
  - Lagos (Nigeria)
  - Cairo (Egypt)
  - Kinshasa (Democratic Republic of the Congo / DRC)
  - Johannesburg (South Africa)
  - Khartoum (Sudan)

Historical Political Structures and Colonial Partition

Pre-Colonial Forms of Political Organization:
- Kingdoms and Empires
- Large Chiefdoms
- Petty Chiefdoms
- Acephalous societies (stateless societies lacking centralized hierarchical leadership)
- Hunter-gatherer groups

Pre-colonial governance systems in Africa

Colonial Partition and Imperial Powers:
- British Imperial Territories: Egypt, British Sudan, Sierra Leone, Gold Coast, British Nigeria, British Somalia, Uganda, Kenya, Zanzibar, Nyasaland, Northern Rhodesia, Southern Rhodesia, Bechuanaland, Union of South Africa.
- French Imperial Territories: Morocco, Algeria, Tunisia, French West Africa, Equatorial Africa, French Congo, Madagascar.
- Italian Imperial Territories: Tripoli (Libya), Cyrenaica, Italian Eritrea, Italian Somaliland.
- Belgian Imperial Territories: Belgian Congo, Rwanda, Burundi.
- Portuguese Imperial Territories: Angola, Portuguese Mozambique.
- Spanish Imperial Territories: Spanish Morocco, Rio de Oro.
- Independent Entities during Colonization: Abyssinia (Ethiopia), Liberia.

Macro and Sub-Regional Divisions

Macro-Geographic Categorization:
- North Africa
- Sub-Saharan Africa
Sub-Regional Breakdown:
- North Africa
- West Africa
- Central Africa
- East Africa
- Southern Africa
- Madagascar
Prominent Focus Countries Across Regions:
- Egypt
- Chad
- Morocco
- Côte d'Ivoire (Ivory Coast)
- Democratic Republic of the Congo
- Ethiopia
- Kenya
- Tanzania
- South Africa
- Mozambique
- Malawi
- Zimbabwe

Hydrography: Major Rivers and Lakes

Surrounding Oceans, Seas, and Maritime Channels:
- Strait of Gibraltar
- Mediterranean Sea
- Suez Canal
- Red Sea
- Gulf of Aden
- Atlantic Ocean
- Indian Ocean
- Mozambique Channel
Major African Rivers Ranked by Length:
- Nile River: $6,853\,km$
- Congo River: $4,700\,km$
- Niger River: $4,180\,km$
- White Nile: $3,700\,km$
- Zambezi River: $2,574\,km$
- Ubangi-Uele River: $2,270\,km$
- Orange River: $2,200\,km$
- Lualaba River: $1,800\,km$
- Limpopo River: $1,750\,km$
- Blue Nile: $1,450\,km$
- Benue River: $1,400\,km$
- Additional Notable Rivers: Senegal River, Volta River.
Major African Lakes Ranked by Volume and Surface Area:
- Lake Victoria: Volume = $2,750\,km^3$ ; Surface Area = $68,800\,km^2$
- Lake Tanganyika: Volume = $18,900\,km^3$ ; Surface Area = $32,900\,km^2$
- Lake Nyasa (Lake Malawi): Volume = $8,400\,km^3$ ; Surface Area = $29,600\,km^2$
- Lake Turkana: Volume = $203.6\,km^3$ ; Surface Area = $6,405\,km^2$
- Lake Albert: Volume = $132\,km^3$ ; Surface Area = $5,300\,km^2$
- Lake Tana: Volume = $28\,km^3$ ; Surface Area = $3,200\,km^2$
- Lake Chad: Volume = $72\,km^3$ ; Surface Area = $1,350\,km^2$

Plate Tectonics and the East African Rift System

Tectonic Boundaries:
- The continental landmass resides primarily on the African Plate, bordering the Eurasian Plate, Arabian Plate, South American Plate, Antarctic Plate, and Australian-Indian Plate.
- The Somalian Subplate is separating from the main African Plate along divergent plate boundaries.
East African Rift System (EARS) Structural Branches:
- Eastern Branch: Comprises the Afar region, Main Ethiopian Rift, Omo-Turkana Lows, Kenyan Rift, Gregory Rift, and North Tanzanian Divergence.
- Western Branch: Comprises Lake Albert, Lake Edouard, Lake Kivu, Lake Tanganyika, Lake Rukwa, Lake Mweru, Lake Malawi, and Lake Kariba.
- Southeastern Branch: Extends through the Davie Ridge into the Mozambique Channel.

East African Rift System map and branches

Ethno-Linguistic Diversity and Global Language Statistics

Global and Continental Language Diversity:
- Total spoken languages worldwide: $7,674$
- Total spoken languages in Africa: $2,019$ distinct languages (plus $4,026$ dialects), accounting for $26\%$ of all languages in the world.
- Africa possesses the world's highest level of genealogical diversity among linguistic families.
- By contrast, Europe contains the lowest number of indigenous languages and is mono-familial (consisting exclusively of Indo-European languages).
- Linguistic Evolutionary Rule: After $10,000$ years of divergence or isolation, languages become isolates and parent branches die out.
Endangerment Levels of Spoken Languages Worldwide:
- Not endangered: $2,770$ languages
- Threatened-shifting: $3,364$ languages
- Towards extinction: $1,540$ languages
Four Major Language Super-Families of Africa:
1. Atlantic-Congo: $1,408$ languages
2. Afro-Asiatic: $381$ languages
3. Nilo-Saharan: $200$ languages
4. Khoi-San: $30$ languages

Regional Ethno-Linguistic Profiles:
- North Africa:
  - Berbers: Population = 14 million; Geographic Location = Algeria, Libya, Mali, Morocco, Niger; Language Family = Berber.
  - Egyptians: Population = 79 million; Geographic Location = Egypt; Language Family = Semitic.
  - Nubians: Population = 873,000; Geographic Location = Egypt, Sudan; Language Family = Eastern Sudanic.
  - Tuareg: Population = 1.2 million; Geographic Location = Mali, Niger; Language Family = Berber.
- West Africa:
  - Fang: Population = 3.3 million; Geographic Location = Cameroon, Equatorial Guinea, Gabon; Language Family = Bantu.
  - Fulani: Population = 13 million; Geographic Location = Guinea, Nigeria, Senegal; Language Family = Atlantic.
  - Hausa: Population = 25 million; Geographic Location = Niger, Nigeria; Language Family = Chadic (Functions widely as a language of trade and communication).
  - Igbo: Population = 20 million; Geographic Location = Nigeria; Language Family = Benue-Congo.
  - Yoruba: Population = 28 million; Geographic Location = Nigeria; Language Family = Benue-Congo.
- Central Africa:
  - Efe, Mbuti, Sua, Aka ("Pygmies"): Population = 200,000; Geographic Location = DRC; Language Family = Central Sudanic.
  - Kongo: Population = 2.2 million; Geographic Location = DRC, Congo; Language Family = Bantu.
  - Mangbetu: Population = 50,000; Geographic Location = DRC; Language Family = Central Sudanic.
- Southern Africa:
  - San: Population = 80,000; Geographic Location = Angola, Botswana, Namibia, South Africa; Language Family = Khoisan.
  - Shona: Population = 10 million; Geographic Location = Mozambique, Zimbabwe; Language Family = Bantu.
  - Tswana: Population = 4.4 million; Geographic Location = Botswana, Namibia, South Africa, Zimbabwe; Language Family = Bantu.
  - Zulu: Population = 10 million; Geographic Location = South Africa; Language Family = Bantu.
- Eastern Africa:
  - Tutsi & Hutu: Population = 18 million; Geographic Location = Burundi, Rwanda; Language Family = Bantu.
  - Amhara: Population = 16 million; Geographic Location = Ethiopia; Language Family = Semitic.
  - Baganda: Population = 5.1 million; Geographic Location = Uganda; Language Family = Bantu.
  - Masai: Population = 883,000; Geographic Location = Kenya, Tanzania; Language Family = Nilotic.
  - Somali: Population = 13 million; Geographic Location = Ethiopia, Somalia; Language Family = Cushitic.
  - Swahili: Population = 200 million; Geographic Location = Tanzania, Kenya, Somalia, Mozambique, DRC; Language Family = Bantu (Serves as a major cross-border lingua franca spanning diverse ethnic communities).

Analytical Questions on Ethno-Linguistic Patterns

Cross-Border Linguistic Distributions:
- Question: Why do linguistically related peoples extend across several countries, while peoples living within the same country may belong to different linguistic lineages and families?
- Answer / Prompt Context: Historical migrations, geographical trade networks, and modern national boundaries drawn during colonial partition divided continuous language communities across international borders while grouping distinct language families within single nation-states.
Lineage Density in Compact Regions:
- Question: Why does a relatively compact part of Africa contain so many distinct linguistic lineages?
- Answer / Prompt Context: Prolonged historical settlement, micro-climate specialization, geographical barriers, and centuries of localized population fragmentation lead to high linguistic diversity within restricted territorial areas.
Environmental Determinism vs. Linguistic Identity:
- Question: Does sharing the same rainforest environment make populations one people or one linguistic group?
- Answer / Prompt Context: Environmental co-habitation does not equate to shared linguistic origin; groups residing in identical biome conditions (e.g., the Central African rainforest) frequently retain completely different language families (such as Central Sudanic vs. Bantu).
Language as an Ethnicity Proxy:
- Question: Can a language be used as a reliable proxy for ethnicity or population identity?
- Answer / Prompt Context: Language cannot serve as an absolute proxy for ethnicity, as widespread trade languages (e.g., Swahili, Hausa) are adopted by hundreds of millions of individuals across distinct ethnic groups and national identities.

Structural Organization of Bantu Languages

Worldview Organization in Bantu Grammar:
- Bantu languages structure meaning through sentence-wide agreement/rhyme systems rather than treating nouns as static, isolated categories typical of Western languages.
- Morphological elements include prefixes, tense markers, roots, endings, relative prefixes (amb-), locatives (pokomo, po, ko, mo), and direct object markers.
- Time Infixes:
  - -po-: Paired with tenses li, na, ta to denote "when".
  - -sha-: Paired with me to denote "already".
- Other Common Infixes / Markers: -ji-, -hu-, -ka-.

Swahili and Bantu grammar whiteboard overview

Comparative Sentence Concordance Analysis in Swahili:
- Singular Form: "Mto huu mkubwa unaopita katika bonde hili una maji mengi."
- Plural Form: "Mito hii mikubwa inayopita katika mabonde haya ina maji mengi."
- Morphological Changes Between Singular and Plural:
  - Noun head modification: Mto (river) $\rightarrow$ Mito (rivers); bonde (valley) $\rightarrow$ mabonde (valleys).
  - Demonstratives modification: huu (this) $\rightarrow$ hii (these); hili (this) $\rightarrow$ haya (these).
  - Adjective modification: mkubwa (large) $\rightarrow$ mikubwa (large, plural).
  - Verbal and relative prefix concord: unaopita (that passes) $\rightarrow$ inayopita (that pass); una (it has) $\rightarrow$ ina (they have).
- Plurality Expression Mechanics: Plurality is expressed through alliteration and agreement prefixes that cascade across every modifier, verb, and demonstrative linked to the noun.

Agricultural History and Indigenous African Crops

Cultivar History and Replacement Trends:
- Indigenous African crops have sustained populations since early human history, comprising nutritious grains, fruits, nuts, vegetables, and legumes.
- Africa possesses a greater quantity of native cereals than any other continent.
- Over the course of the last $2,000$ years, African farmers have steadily replaced many of their indigenous cultivars with introduced foreign crops.
Complete List of Native African Crops:
- Native Cereals and Grains:
  - Red Rice
  - Fonio
  - Pearl Millet
  - Finger Millet
  - Sorghum
  - Tef
- Native Fruits, Nuts, Vegetables, and Trees:
  - Balanites
  - Baobab
  - Butterfruit
  - Carissa
  - Horned Melon
  - Kei Apple
  - Marula
  - Melon
  - Tamarind
  - Watermelon
  - Chocolate Berries
  - Custard Apples
  - Ebony
  - Gingerbread Plums
  - Gumvines
  - Monkey Oranges
  - Star Apples
  - Sugarplums
  - Sweet Detar
  - Tree Grapes
Global Domestication Centers (Comparative Context):
- Eastern North America: Sunflower
- Mesoamerica: Tomatoes, beans, squash, corn, peppers, peanuts, sweet potato
- Peru, Ecuador (South America): Potatoes
- Levant: Wheat, goat, sheep
- China: Rice, chicken, millet, pig
- Thailand: Pineapple
- Southwest Pacific: Bananas and plantains