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Unit 3 - Notes

GEO303 10 min read

Unit 3: Division of mankind

1. Evolution of Man

The study of human evolution in geography focuses on how environmental changes, migration patterns, and adaptation shaped the spatial distribution of early hominins. The biological and cultural evolution of humankind is intimately linked to the physical geography of the Earth, particularly climatic shifts during the Pleistocene Epoch.

Key Stages of Hominin Evolution

  • Australopithecus (approx. 4 - 2 million years ago):
    • Geography: Emerged in Eastern and Southern Africa (e.g., Great Rift Valley).
    • Characteristics: First hominins to exhibit consistent bipedalism (walking on two legs), which allowed them to navigate the expanding African savannas as forests receded due to climate change.
  • Homo Habilis (approx. 2.4 - 1.4 million years ago):
    • Geography: Sub-Saharan Africa.
    • Characteristics: Known as "Handy Man." Marked the beginning of the Paleolithic era with the invention of Oldowan stone tools, allowing for dietary shifts and environmental manipulation.
  • Homo Erectus (approx. 1.89 million - 110,000 years ago):
    • Geography: First hominin to migrate out of Africa. Fossils found in Asia (Java Man, Peking Man) and Europe.
    • Characteristics: Larger brain capacity, advanced Acheulean tools, and the crucial mastery of fire. Fire provided warmth in colder latitudes, protection, and the ability to cook food, which further fueled brain development.
  • Homo Neanderthalensis (approx. 400,000 - 40,000 years ago):
    • Geography: Europe and Southwestern/Central Asia.
    • Characteristics: Adapted to cold environments (Ice Age Europe) with robust bodies and complex Mousterian tools. Practiced early cultural rituals, including burying the dead.
  • Homo Sapiens (approx. 300,000 years ago to Present):
    • Geography: Originated in Africa and achieved global dispersion, eventually crossing land bridges (e.g., Beringia) into the Americas and navigating to Oceania.
    • Characteristics: Highly developed cognitive abilities, complex language, art (cave paintings), and the eventual development of agriculture (Neolithic Revolution), leading to permanent settlements.

Major Theories of Human Dispersal

  1. Out of Africa (Replacement) Theory: Suggests that modern Homo sapiens evolved exclusively in Africa and migrated outward, completely replacing other older hominin populations (like Neanderthals and Homo erectus) globally. This is the most widely accepted scientific model, supported by mitochondrial DNA.
  2. Multiregional Hypothesis: Argues that early hominins migrated out of Africa first, and then Homo sapiens evolved simultaneously in different regions of the world through continuous gene flow between populations.

2. Race: Biological and Social Constructs

In traditional geography and anthropology, "race" was used to classify human populations based on phenotypic (observable physical) traits. Today, modern science recognizes that race is strictly a social construct, not a biological reality. Genetic variation in humans is clinal (gradual) rather than strictly categorical.

Traditional Bases of Classification

Historically, geographers and physical anthropologists classified races based on indices:

  • Skin Color (Pigmentation): Correlated geographically with latitude and UV radiation levels (melanin adaptation).
  • Cephalic Index: Ratio of the maximum width of the head to its maximum length (Dolichocephalic/long-headed, Mesalocephalic/medium, Brachycephalic/broad-headed).
  • Nasal Index: Shape of the nose, historically linked to climate adaptation (narrow noses in cold/dry climates to warm air; broad noses in hot/humid climates).
  • Hair Texture: Straight, wavy, or woolly.

Griffith Taylor’s Migration Zone Theory

Geographer Griffith Taylor proposed one of the most famous (though now scientifically obsolete) theories regarding racial classification and distribution, heavily influenced by environmental determinism. He argued that human races evolved in Central Asia and were pushed outward in concentric zones due to climate change (ice ages).

  • His Classification (from oldest/outermost to newest/innermost):
    1. Negrito: Equatorial forests (e.g., Congo, Southeast Asian islands).
    2. Negro: Africa and Oceania.
    3. Australoid: Australia, parts of South India.
    4. Mediterranean: North Africa, Southern Europe, Middle East.
    5. Nordic: Northern Europe.
    6. Alpine: Central Europe to Central Asia.
    7. Mongolian: Central and East Asia (the latest to evolve, according to Taylor, remaining in the core area).

Note: Taylor's theory is studied today purely for its historiographical significance in the development of human geographical thought, not as scientific fact.

3. Cultural Realms of the World

A cultural realm is the largest scale of cultural region. It represents a macro-geographical area sharing a broad set of cultural traits, such as religion, language, diet, customs, and economic development.

Major Cultural Realms (Based on Broek and Webb / Jan O.M. Broek)

  1. The Occidental (Western) Realm:
    • Geography: Europe, North America, Australia, New Zealand.
    • Characteristics: Predominantly Christian (Protestant/Catholic), Indo-European languages, highly urbanized, industrialized, democratic political systems, and capitalist economies.
  2. The Islamic Realm:
    • Geography: North Africa, Middle East, Central Asia, parts of Southeast Asia (e.g., Indonesia).
    • Characteristics: Centered entirely around the Islamic faith. Arabic serves as the primary religious and often regional language. Distinct architectural landscapes (mosques, minarets), traditional social structures, and arid/semi-arid environmental adaptations (pastoral nomadism, oasis agriculture).
  3. The Indic Realm:
    • Geography: Indian Subcontinent (India, Nepal, Bangladesh, parts of Sri Lanka).
    • Characteristics: Birthplace of Hinduism, Buddhism, Jainism, and Sikhism. Characterized by high population density, complex social hierarchies (caste system), agricultural-based economies (monsoon dependence), and extreme linguistic diversity.
  4. The East Asian (Sino-Japanese) Realm:
    • Geography: China, Japan, Korean Peninsula, Taiwan.
    • Characteristics: Influenced by ancient Chinese civilization. Belief systems include Confucianism, Taoism, Shinto, and Mahayana Buddhism. Features Sino-Tibetan languages (and language isolates like Japanese), intensive wet-rice agriculture, and rapid modern industrialization.
  5. The Southeast Asian Realm:
    • Geography: Indochina peninsula and the Malay Archipelago.
    • Characteristics: A transition zone and cultural crossroads. Exhibits heavy influences from Indic, East Asian, Islamic, and Western (colonial) realms. High ethnic and linguistic fragmentation.
  6. The Meso-African (Sub-Saharan) Realm:
    • Geography: Africa south of the Sahara Desert.
    • Characteristics: High ethnic and linguistic diversity (Niger-Congo language family dominance). Traditional animist religions heavily mixed with Christianity and Islam. Strong tribal/kinship identities, shifting cultivation, and pastoralism.
  7. The Latin American Realm:
    • Geography: Mexico, Central America, South America, Caribbean.
    • Characteristics: A fusion of Indigenous, Iberian (Spanish/Portuguese), and African cultures. Predominantly Roman Catholic. Rapid urbanization but marked by stark economic inequality.

4. Religion: Spatial Distribution and Impact

Religion acts as a powerful spatial mechanism, dictating human behavior, migration, dietary habits, and the physical transformation of the cultural landscape.

Classification of Religions

  • Universalizing Religions: Seek to appeal to all people globally. They actively seek converts and diffuse widely. (e.g., Christianity, Islam, Buddhism).
  • Ethnic Religions: Appeal primarily to one group of people living in one place. They generally do not seek converts and diffuse primarily through relocation (migration). (e.g., Hinduism, Judaism, Shinto).

Major World Religions

  1. Christianity (Universalizing):
    • Origin: The Levant (Middle East).
    • Diffusion: Expansion diffusion via the Roman Empire, followed by relocation diffusion via European colonization and missionary work.
    • Distribution: Largest world religion. Dominant in the Americas, Europe, Sub-Saharan Africa, and Oceania.
  2. Islam (Universalizing):
    • Origin: Arabian Peninsula (Mecca, 7th Century).
    • Diffusion: Contagious expansion across the Middle East and North Africa; trade and conquest into Central Asia, India, and Southeast Asia.
    • Distribution: North Africa, Middle East, Central Asia, South Asia, and Indonesia (largest Muslim-majority country). Divided primarily into Sunni (majority) and Shia (concentrated in Iran/Iraq).
  3. Hinduism (Ethnic):
    • Origin: Indus River Valley (approx. 2500 BCE).
    • Diffusion: Largely confined to the Indian Subcontinent, with minor relocation diffusion via the Indian diaspora.
    • Distribution: India, Nepal, Mauritius, Bali (Indonesia).
  4. Buddhism (Universalizing):
    • Origin: Northern India/Nepal (6th Century BCE).
    • Diffusion: Diffused across Asia via trade routes (Silk Road) and missionaries sent by Emperor Ashoka. Interestingly, it declined in its hearth (India) while thriving abroad.
    • Distribution: East Asia (Mahayana), Southeast Asia (Theravada), and Tibet/Mongolia (Vajrayana).
  5. Judaism (Ethnic):
    • Origin: The Levant.
    • Diffusion: Forced relocation diffusion (The Diaspora) by the Roman Empire.
    • Distribution: Israel (only Jewish-majority state), United States, and parts of Europe.

Religion's Impact on the Cultural Landscape

  • Sacred Spaces: Shrines, temples, mosques, churches, and natural sites (e.g., Ganges River, Mount Fuji).
  • Disposal of the Dead: Cemeteries occupy significant land in Christian and Islamic regions, whereas cremation is standard in Hindu and Buddhist regions, impacting land use differently.
  • Taboos: Dietary restrictions alter agricultural practices (e.g., lack of pig farming in Islamic regions; sacred cows in India preventing beef production).

5. Language: Families and Distribution

Language is the primary mechanism by which culture is transmitted. Geographers study language through the "Language Tree" model, tracking divergence and spatial diffusion.

The Language Tree Concept

  • Language Families: Broadest classification, sharing a distant, prehistoric ancestral language (Proto-language).
  • Language Branches: Collections of languages derived from a family, sharing a more recent common ancestor.
  • Language Groups: Closely related languages within a branch with similar grammar and vocabulary.

Major Language Families

  1. Indo-European:
    • Distribution: Largest family, spoken by about 46% of the world. Covers Europe, the Americas, South Asia, and parts of Oceania.
    • Key Branches: Germanic (English, German), Romance (Spanish, French, Italian), Indo-Iranian (Hindi, Persian, Bengali), Balto-Slavic (Russian, Polish).
    • Diffusion Theories: Nomadic Warrior Theory (Kurgan hypothesis via military conquest) vs. Sedentary Farmer Theory (Anatolian hypothesis via agricultural spread).
  2. Sino-Tibetan:
    • Distribution: Spoken by about 20% of the world. Centered in China and Southeast Asia.
    • Key Languages: Mandarin (most native speakers globally), Cantonese, Burmese, Tibetan.
  3. Niger-Congo:
    • Distribution: Sub-Saharan Africa.
    • Key Languages: Swahili (a major lingua franca), Yoruba, Zulu. Features the vast Bantu subgroup, which spread via the Bantu Migration.
  4. Afro-Asiatic:
    • Distribution: North Africa, Middle East.
    • Key Languages: Arabic, Hebrew, Amharic.
  5. Austronesian:
    • Distribution: Southeast Asia, Madagascar, Pacific Islands.
    • Key Languages: Indonesian, Javanese, Tagalog, Malagasy. Represents incredible maritime migration.
  6. Dravidian:
    • Distribution: Southern India, parts of Sri Lanka.
    • Key Languages: Telugu, Tamil, Malayalam, Kannada.

Linguistic Spatial Concepts

  • Lingua Franca: A language mutually understood and commonly used in trade by people who have different native languages (e.g., English globally; Swahili in East Africa).
  • Pidgin: A simplified form of speech developed from two or more languages. No native speakers.
  • Creole: A pidgin language that has developed complex grammar and vocabulary and becomes the native language of a group of people (e.g., Haitian Creole).
  • Isogloss: A geographic boundary within which a particular linguistic feature occurs.

6. Indigenous People of the World

Indigenous peoples are the original inhabitants of a region prior to colonization, possessing distinct linguistic, cultural, and socio-political identities separate from the dominant societies in which they live.

Key Characteristics

  • Strong historical and spiritual connection to traditional lands and natural resources.
  • Distinct socio-economic and political systems.
  • Maintenance of traditional languages and pre-colonial belief systems.
  • Often marginalized, representing a minority within the broader nation-state.

Spatial Distribution of Major Indigenous Groups

North and South America

  • Inuit: Inhabit the Arctic regions of Canada, Alaska, and Greenland. Traditionally hunter-gatherers adapted to extreme cold (seal, whale hunting).
  • Native Americans (First Nations): Highly diverse groups across North America (e.g., Navajo in the US Southwest, Cherokee in the Southeast, Sioux in the Plains).
  • Mesoamerican Peoples: Descendants of advanced pre-Columbian civilizations (e.g., Maya in Southern Mexico/Guatemala, Nahua in Central Mexico).
  • Amazonian Tribes: Yanomami and Kayapo in the Amazon basin. Highly adapted to rainforest ecology, threatened heavily by deforestation and mining.
  • Mapuche: Indigenous to Southern Chile and Argentina; historically resisted Incan and Spanish conquest.

Africa

  • San (Bushmen): Kalahari Desert (Botswana, Namibia). Among the oldest genetic lineages of humans. Traditional hunter-gatherers utilizing click-languages.
  • Maasai: East Africa (Kenya, Tanzania). Semi-nomadic pastoralists whose culture centers entirely around cattle.
  • Pygmies (e.g., Mbuti, Baka): Central African rainforests. Known for short stature (an evolutionary adaptation for navigating dense jungles and thermoregulation).
  • Tuareg: Nomadic Berber pastoralists inhabiting the Saharan interior.

Asia

  • Ainu: Indigenous to northern Japan (Hokkaido) and parts of Russia. Culturally and linguistically distinct from ethnic Japanese.
  • Sentinelese & Jarawa: Andaman Islands (India). Uncontacted or minimally contacted voluntary isolationists.
  • Chukchi and Nenets: Siberian Arctic (Russia). Nomadic reindeer herders adapted to the tundra.

Oceania and Australia

  • Aboriginal Australians: Inhabited Australia for over 50,000 years. Characterized by complex kinship systems and the spiritual concept of the "Dreamtime."
  • Maori: Indigenous Polynesian people of New Zealand. Known for distinct tribal structures (iwi) and traditional arts (ta moko tattoos).
  • Papuans: Inhabitants of New Guinea, possessing some of the highest linguistic diversity on the planet (hundreds of distinct language isolates).

Geographic and Contemporary Challenges

  • Land Rights & Dispossession: Conflict with nation-states and multinational corporations over resource extraction (mining, logging, agriculture) on ancestral lands.
  • Climate Change: Many indigenous groups live in ecologically sensitive areas (Arctic ice melt, Amazonian droughts, Pacific island sea-level rise), making them exceptionally vulnerable to environmental shifts.
  • Cultural Assimilation & Language Extinction: Globalization, state-sponsored boarding schools (historically), and rural-to-urban migration threaten the transmission of traditional knowledge and languages.
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