Chimú Empire Expansion Along the Peruvian Coast (c. 1178 CE)

Timeline

1. c. 1175–1178Chan Chan archaeological site · La Libertad RegionChimú rulers expanded the adobe palace complexes (ciudadelas) at Chan Chan, managing subject elites through administrative-residential units separated by high walls. The capital's scale and planning complexity continued to grow in the late 12th century, showing increased central control over coastal resources.
2. c. 1178–1180Moche–Lambayeque valleys, north coast of Peru · North CoastChimú power advanced southward along irrigated valleys, incorporating independent farming settlements into systems of tribute and corvée labor. Chimú-style pottery and architectural techniques spread in the integrated areas while some local ritual traditions were preserved, forming a hierarchical coastal imperial network.