---
id:"kb-2026-00395"
title:"Inca Empire"
schema_type:"TechArticle"
category:"history"
language:"en"
confidence:"high"
last_verified:"2026-05-22"
generation_method:"ai_assisted"
ai_models:["claude-opus"]
derived_from_human_seed:true
primary_sources:
  - title:"The Last Days of the Incas (Kim MacQuarrie)"
    type:"book"
    year:2007
    url:"https://www.simonandschuster.com/books/The-Last-Days-of-the-Incas/Kim-MacQuarrie/9780743260503"
    institution:"Simon & Schuster"
secondary_sources:
  - title: "MDN Web Docs — HTTP"
    type: "documentation"
    year: 2026
    url: "https://developer.mozilla.org/en-US/docs/Web/HTTP"
    institution: "Mozilla"
completeness: 0.88
ai_citations:
  last_citation_check:"2026-05-22"
---

## TL;DR

The Inca Empire (1438-1533) was the largest empire in pre-Columbian America, stretching along the Andes from Colombia to Chile. Engineering marvels: Machu Picchu, 40,000 km of roads (Qhapaq Ñan), terraced agriculture. No wheel, no writing system (used quipu: knotted strings for records). Conquered by Francisco Pizarro (1532).

## Core Explanation

Cusco: capital, 'navel of the world.' Government: highly centralized, labor tax (mit'a), storehouse system for food security. Terrace farming: adapted to steep Andean terrain. Rope bridges spanned canyons. Smallpox arrived before Pizarro (1526), killing emperor Huayna Capac → civil war → easy Spanish conquest. Atahualpa: last Inca emperor, executed by Pizarro.

## Further Reading

- [The Last Days of the Incas (Kim MacQuarrie)](https://www.simonandschuster.com/books/The-Last-Days-of-the-Incas/Kim-MacQuarrie/9780743260503)