Power before Columbus: political organization and warfare in the Americas (History HL)

Before any European ship reached the Americas, millions of people already lived under highly organized political systems. It is wrong to picture 'tribes wandering the wilderness' — by 1500 the Americas held everything from small mobile bands to an empire of an estimated 10 million people. For Paper 3, you need to explain why societies took different political forms, not just describe them.

The key variable: local vs state authority: In every system, the exam wants you to identify who held power and at what level. Non-sedentary bands had almost no 'state' at all — authority was local and personal. Empires like the Inca and Aztec ran a two-tier system: a state authority (the emperor, his officials, tribute collectors) sitting on top of local authorities (conquered kings, chiefs and nobles) who were often left in place to govern their own people day-to-day, as long as tribute and loyalty kept flowing.

This mattered because it explains empire size. Neither the Inca nor the Aztec had enough soldiers or officials to directly rule every conquered town. Instead they built systems that let local rulers keep local power in exchange for obedience to the centre — a cheaper and more stable way to govern a vast, ethnically diverse territory.

Naming names: Only individuals and events named in the guide are examinable. For this bullet, you can safely discuss the Aztec Triple Alliance and the Inca Empire as your two required case-study societies — you do not need named rulers yet (that comes with warfare, below).

The Mexica people (commonly called the Aztecs) arrived in the Valley of Mexico as a small, unwelcome migrant group and founded their island city, Tenochtitlan, around 1325. Within a century they had turned local weakness into imperial strength.

Why 1428 matters: The formation of the Triple Alliance is the hinge moment: it turns three separate local powers into one imperial state authority strong enough to demand tribute from dozens of other city-states, while still letting most local rulers govern their own communities.

By the early 1500s the empire loosely controlled perhaps 5–6 million people across central and southern Mexico — but it was never a single unified administration. It was closer to a network of subject city-states bound to the centre by tribute obligations and the threat of the Mexica army, which brings us to warfare.

Warfare did not just create these empires — it was the tool that kept them running every single year. Both the Inca and the Aztec used war for expansion (adding new territory) and for maintenance (keeping existing subjects obedient).

The Inca Empire: Pachacuti and rapid conquest

The Inca began as one small kingdom based at Cuzco in the Andes. Under the ruler Pachacuti (from the 1430s), the Inca launched a rapid campaign of conquest that turned a local kingdom into Tawantinsuyu — 'the four regions' — stretching over 4,000 km along the Andes by 1500.

The Aztecs: conquest, tribute demands and the 'Flower Wars'

Comparing the two war-machines: Both empires used war to expand AND to maintain power, but their follow-through differed: the Inca combined conquest with resettlement and infrastructure (roads, garrisons) to bind new land in; the Aztecs relied more on the fear of repeated punitive war and heavy tribute to keep subject cities compliant, which left unresolved resentments — a weakness later exploited during the Spanish conquest (covered in a later micro).

Don't collapse the two case studies: It's tempting to write 'both empires used war to expand' and stop there. HL examiners want the mechanism: how exactly did war translate into lasting political control? For the Inca, point to roads and resettlement; for the Aztec, point to tribute and the constant threat of re-conquest.