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Aztec, Inca & Spanish Empire: Silver, Sacrifice & Global Impact

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Overview: The First Global Economy & Its Human Cost

John Green traces the rise and fall of the Aztec and Inca civilizations, the Spanish conquest, and how silver from the Americas reshaped the entire planet, often for the worse.

Aztec Empire: Power Through Tribute & Terror

  • Formed ~1430 from a triple alliance of city-states in modern Mexico.
  • Hierarchical society: emperor, nobles, powerful priests.
  • Human sacrifice central to religion, appeasing gods to prevent cosmic disasters (cyclical history ending in apocalypse).
  • Demanded tribute (goods, precious metals, sacrificial victims) from conquered peoples.
  • Capital Tenochtitlan (modern Mexico City) was a canal-based city like Venice, with floating gardens (chinampas).
  • Ruled over many resentful subjects, making it easier for Cortés to find allies.

Open Letter: Human Sacrifice

Green draws parallels to modern "sacrifice" narratives (e.g., Armageddon), arguing that belief in existential threats makes sacrifice "logical", a pattern we still repeat.

Inca Empire: Centralized Labor Without Writing

  • Older than Aztecs; ruled 4–6 million by 1532.
  • No written language, used knotted quipus for records.
  • Mit’a system: mandatory unpaid labor for the state (roads, temples).
  • Integrated conquered peoples by mandating Incan language and labor contributions.
  • Spanish later adopted and worsened the mit’a for silver mining.

Spanish Conquest & Colonial Administration

  • 1519 (Mexico) and 1532 (Peru): disease had already devastated populations.
  • Created two viceroyalties: New Spain (1521) and Peru (1542).
  • Adapted existing Aztec/Inca hierarchical structures for colonial rule.

The Silver Mountain & Forced Labor

  • Cerro Rico (Potosi, Bolivia) produced >150,000 tons of silver, >80% of global supply.
  • Spanish required 1/7 of adult male Indians to work mines for subsistence wages.
  • Mercury poisoning from refining (Huancavelica mine) so rampant parents maimed children to spare them.
  • Why not African slaves? Cheaper to use indigenous labor; slaves lacked high-altitude experience and faced deadly conditions.

Economic & Political Consequences

Spain: Inflation & Overreach

  • Silver flood caused skyrocketing inflation; royal tax rates stayed static, devaluing revenue.
  • Wealth funded expensive wars (Netherlands rebellion, Spanish Armada 1588).
  • Repeated debt defaults in the 17th century.

China: Silver Hunger & Silk Glut

  • 1/3 of American silver went to China (directly or via trade).
  • Ming dynasty switched to silver taxes (from grain/labor), forcing everyone to produce goods for silver, mostly silk.
  • Silk oversupply crashed prices, hurting Spanish silk producers.
  • Ming also failed to adjust for inflation; overspent on defense (Great Wall) → overthrown by Manchus (Qing dynasty).

Global Ripple Effects

  • First truly global market: silver connected Americas, Europe, China, and India.
  • Silver pesos became de facto world currency.
  • Dutch and English rebellions partly funded by American silver.
  • Ironic result: English victory over Armada boosted Elizabeth I’s prestige, funding arts → Shakespeare’s plays (e.g., about King Richard).

Lasting Trade-Offs

  • Environmental destruction, millions of deaths (mining, mercury, conquest).
  • Destruction of two great empires (Aztec, Inca).
  • Yet this global system created the interconnected world we live in today, including the technology to produce this video.

Key quote (historian Dennis Flynn): "A significant hunk of the GDP of China... was surrendered in order to secure a white metal... Think about what else those resources could have been used for."

Final Reflection

"Worth the sacrifices? I don’t know. You tell me." – John Green

Heads up!

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