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A connection

How did Food Triage lead to Property and Contracts?

7 steps · 7 domains · 297,000 years

  1. Food Triagesince the species began · 300,000 BCThe hard-won knowledge of what is safe to eat and how cooking turns poison into food — the difference between a full belly and a fatal mistake.
  2. 有赖于它的是—— 使之可造
    Control of Fire~1,000,000 BC · 1,000,000 BCThe ability to keep, feed, and eventually start a fire at will — humanity's first external source of energy.
  3. 使之可造
    Charcoalby ~4,000 BC (as furnace fuel) · 4,000 BCWood baked without air until only nearly-pure carbon remains — a fuel that burns far hotter and cleaner than the wood it came from.
  4. 使之可能
    Iron Smelting (Bloomery)~1,500 BC · 1,500 BCReducing iron ore to workable metal in a charcoal-fired clay furnace.
  5. 使之可能
    Navigation~1090 AD (magnetized needle described 1088; compass at sea by ~1119) · 1090 ADThe compass, the chart, and the stars — the toolkit that lets a ship leave sight of land and arrive somewhere on purpose.
  6. 有赖于它的是—— 使之可想
    Numbers and Geometry~3,400 BC (token accounting) · 3,400 BCWays of counting, calculating, and measuring shapes — the mental tools that turn "some sheep" into "seventeen sheep" and "that field" into "so many paces on each side."
  7. 使之可想
    Writing~3,200 BC · 3,200 BCMarks that store speech and records outside a human head — memory that survives its owner and travels without a messenger.
  8. 使之可能
    Property and Contracts~3,000 BC (seals and contracts) · 3,000 BCAgreed answers to "who owns what" plus promises recorded so they outlive moods, memories, and the people who made them.

Every link in this chain is a verified dependency — not a trivia association. Explore either end: Food Triage or Property and Contracts.