Obsidian-Blade Weapon System

Timeline

1. c. 100–600Teotihuacan workshop district · State of MexicoCentral cities such as Teotihuacan established obsidian pressure-flaking workshops mass-producing standardized prismatic blades. Artisans struck obsidian cores with antler or wooden punches to detach sharp thin flakes used for cutting, scraping, and ritual, with military and everyday tool uses sharing the same technological base.
2. c. 1291–1300City-states of the Valley of Mexico · Valley of MexicoIn the late 13th century, green obsidian from Pachuca entered the arsenals of various city-states through tribute and trade networks. Warriors used obsidian-set wooden clubs (macuahuitl) and spears; the blades could cut flesh but shattered easily against hard objects. This weapon was the main infantry equipment in inter-city-state flower wars.
3. c. 1450–1519Arsenal of Tenochtitlan · Valley of MexicoDuring the Aztec Empire's expansion, subject city-states paid tribute in obsidian blades, macuahuitl blanks, and warrior service. The empire controlled the routes to sources such as Pachuca, ensuring centralized allocation of arms. Elite units such as Eagle and Jaguar warriors were all equipped with obsidian-set weapons, forming a hierarchical military equipment system.
4. 1519–1521Battlefield of the siege of Tenochtitlan · Valley of MexicoIn the conquest of 1519–1521, Aztec obsidian weapons were at a disadvantage against Spanish steel swords and firearms: blades could hardly penetrate metal armor, and obsidian shattered on impact. Although Aztec warriors captured artillery and used it in night counterattacks, they could not overcome the technological gap, and the city-state military system collapsed with the fall of Tenochtitlan.