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Data card

West African/Sahelian Trade Volume Data 800-1500 CE

Trade volume estimates for West African/Sahelian civilization during medieval period (800-1500 CE), showing high trade-to-GDP ratios and trans-Saharan trade integration.

Data Summary

  • Trade volume (800 CE): ~$1.2-1.8 billion (estimated, 30-40% of GDP)
  • Trade volume (1200 CE): ~$2.0-2.8 billion (estimated, 30-40% of GDP)
  • Trade volume (1500 CE): ~$2.4-3.6 billion (estimated, 30-40% of GDP)
  • Trade-to-GDP ratio (800 CE): ~30-40% (very high, trans-Saharan trade integration)
  • Trade-to-GDP ratio (1200 CE): ~30-40% (very high, trans-Saharan trade integration)
  • Trade-to-GDP ratio (1500 CE): ~30-40% (very high, trans-Saharan trade integration)
  • Caravan activity (1200 CE): High (trans-Saharan routes, gold trade)
  • Trend: Increasing trade volume (moderate growth, trans-Saharan trade expansion, trade network integration)
  • Confidence: Weak (limited direct records, archaeological proxies, GDP-based estimates, high uncertainty)
  • Source: Historical trade records (where available), archaeological evidence, GDP-based estimates
  • Period: 800-1500 CE (Ghana, Mali, Songhai phases)

Time Series Data

Year Trade Volume (billions, 1990 $) Trade-to-GDP Ratio (%) GDP (billions, 1990 $) Source Notes
800 1.2-1.8 30-40% 4.0 Estimated Ghana expansion, trans-Saharan trade
1000 1.6-2.4 30-40% 5.3 Estimated Ghana peak, trade integration
1200 2.0-2.8 30-40% 6.7 Estimated Mali expansion, continued growth
1400 2.2-3.2 30-40% 7.3 Estimated Mali peak, Songhai rise
1500 2.4-3.6 30-40% 8.0 Estimated Songhai expansion, peak trade

Overland Trade Routes

  • Trans-Saharan routes: North-South trade routes (primary route)
  • Trade hubs: Timbuktu, Gao, Jenne, Kano (major trade centers)
  • Trade goods: Gold, salt, textiles, slaves, ivory, kola nuts, luxury goods
  • Caravan activity: High (trans-Saharan caravans, gold trade, salt trade)

Trade Integration

  • Trans-Saharan trade: Integration with Islamic civilization (North Africa, Mediterranean)
  • Regional trade: Intra-West African trade networks (Niger-Senegal basins)
  • Gold trade: Major gold trade (West African gold to Mediterranean)
  • Trade coordination: Trade hub coordination, caravan route security, trade network coordination

Comparative Context

  • Regional average (West Africa, 1000 CE): ~25-35% trade-to-GDP
  • Global average (1000 CE): ~10-15% trade-to-GDP (estimated)
  • Ranking: 2nd highest trade-to-GDP ratio globally (800-1500 CE, 30-40%, after Southeast Asian/Maritime)
  • Comparison to other civilizations (1000 CE):
    • Southeast Asian/Maritime: ~0.8-1.0x trade-to-GDP (Southeast Asian ~35-50% trade-to-GDP)
    • Islamic: ~1.0-1.2x trade-to-GDP (estimated ~25-35% trade-to-GDP)
    • Sinitic: ~1.5-2.0x higher trade-to-GDP (estimated ~15-25% trade-to-GDP)

Key Events

  • 800-1000 CE: Ghana expansion period - Trade volume growth (25-35% → 30-40% of GDP), trans-Saharan trade integration

  • 1000-1200 CE: Ghana peak and Mali expansion - Continued trade volume (30-40% of GDP), continued growth

  • 1200-1400 CE: Mali expansion period - Continued trade volume (30-40% of GDP), continued growth

  • 1400-1500 CE: Songhai expansion period - Continued trade volume (30-40% of GDP), continued growth

  • Event-data integration: Trade volume trends (25-35% → 30-40% of GDP) reflect Ghana expansion (800-1000 CE), Mali expansion (1200-1400 CE), and Songhai expansion (1400-1500 CE), with trans-Saharan trade integration enabling trade capacity

    • Mali (1200-1400): Continued trade volume (30-40% of GDP), continued growth
    • Songhai (1400-1500): Continued trade volume (30-40% of GDP), continued growth
  • Regional variation: Core regions (trade hubs, Niger-Senegal basins) higher trade volume than periphery

  • Trade network coordination: Trade hubs coordinate trade networks (caravan route security, trade route regulation)

  • Data needs: More detailed trade volume data, caravan activity data, trade route density data, trade goods data

Trade Volume† (billions_1990_intl_dollars, 800-1500)

  • Some values are estimates (interpolated or inferred); each carries a method and confidence in the table (hover the ~).
Data table (5 points)
YearValueSource
800~1.5Estimated
1000~2Estimated
1200~2.4Estimated
1400~2.7Estimated
1500~3Estimated

Trade-to-GDP Ratio† (percent, 800-1500)

  • Some values are estimates (interpolated or inferred); each carries a method and confidence in the table (hover the ~).
Data table (5 points)
YearValueSource
800~30Estimated
1000~30Estimated
1200~30Estimated
1400~30Estimated
1500~30Estimated
About this entry

A draft entry preserved from civilization.study. Evidence grade: weak. 1 of 1 listed sources are fully documented; the rest are names only. † marks figures that are scholarly estimates. Method and sources

Methodology Notes

  • Estimation method:
    • GDP-based estimates: Using trade-to-GDP ratios (30-40% for trans-Saharan trade integration)
    • Historical trade records: Limited records for trans-Saharan trade (gold trade, caravan routes)
    • Archaeological evidence: Trade goods (gold, salt, textiles), caravan routes, trade hubs
    • Comparative estimates: Using trade-to-GDP ratios from similar trade-integrated economies
  • Data quality: Weak (limited direct records, archaeological proxies, GDP-based estimates, high uncertainty)
  • Uncertainty range: ±30-40% (trade volume estimates variable, trade-to-GDP ratios estimated)
  • Limitations:
    • Trade volume estimates variable (limited direct records, archaeological proxies)
    • Trade-to-GDP ratios estimated (based on trans-Saharan trade integration model)
    • Regional variation within West African/Sahelian civilization not fully captured
    • Caravan activity estimates based on limited data
  • Cross-validation:
    • Archaeological evidence (trade goods, caravan routes, trade hubs)
    • Historical records (where available: trade records, gold trade records)
    • GDP estimates (trade-to-GDP ratio consistency)

Integration with Corpus

Notes

  • Trans-Saharan trade: Very high trade-to-GDP ratios (30-40%) reflect trans-Saharan trade integration (gold trade, salt trade, caravan routes)
  • Gold trade: Major gold trade (West African gold to Mediterranean) enables trade network integration
  • Trade goods: Gold, salt, textiles, slaves, ivory, kola nuts, luxury goods
  • Trade hubs: Major trade hubs (Timbuktu, Gao, Jenne, Kano) enable trade network coordination
  • Syncretic zones: High trade volume enables syncretic zone formation (Islamic/West African syncretism)
  • Trend analysis:
    • Ghana (800-1200): Increasing trade volume (30-40% of GDP), trans-Saharan trade expansion

Art: Patterns of Civilization chronicle art, made with AI: illustrations, not historical evidence. Entries are drafts preserved from civilization.study. Method and sources.