Why did Bronze Age civilizations collapse around 1200 BCE?

Between roughly 1225 and 1175 BCE, most major centres of power in the eastern Mediterranean were destroyed or abandoned. The Mycenaean palaces, the Hittite Empire, the kingdom of Ugarit and the Canaanite city-states fell, while Egypt survived in weakened form. Specialists do not have a single agreed explanation. Knapp and Manning write that there has never been an overarching explanation and that the evidence is ambiguous, which makes it hard to separate cause from effect. The most common view in the sources is that several pressures combined. [1] [2]

Researchers analysing core samples from the Sea of Galilee concluded in 2014 that 1250 to 1100 BCE was the driest stretch of the Bronze Age. Eric Cline describes it as a megadrought lasting at least 150 years and up to 300 in some places. Ugaritic and Hittite texts mention famine, and Egyptian and Hittite texts record a widespread plague in the 14th and 13th centuries BCE. [3] [4]

Cline and the geophysicist Amos Nur found a run of major earthquakes between 1225 and 1175 BCE, called an earthquake storm. Cline argues that no single catastrophe would topple eight or more civilizations, but three or four in quick succession could leave no time to recover. [3]

Egyptian records blame the Sea Peoples, a group of raiders or migrants. Other proposed human causes include internal rebellion and the disruption of trade. Documents from the reign of Ramesses III point to corruption behind hunger and shortages, and they mention what is described as the first known strike. [5] [1]

One position stresses a combined catastrophe. Cline's perfect storm view treats drought, famine, earthquakes, invaders and possibly disease as reinforcing one another, and his book 1177 B.C. also emphasises how interdependent the Late Bronze Age powers were. [3] [6]

A second position is a systems collapse. The decline of one society spread through linked trade networks, and Cypriot copper and tin supplies for bronze may have been crucial. One review says this link can only be conjectured, and that systems collapse alone does not explain the fire destructions without added factors such as violence. [1]

Sceptics question the single-cause claims. Climate as the primary driver is described as contested. Evidence for invaders in Greece is scant, some cities were abandoned intact, and the Egyptian accounts of the Sea Peoples may be pharaonic propaganda. The same review suggests the Sea Peoples were varied migrants, merchants or unrelated raiders, and notes that earthquakes are usually followed by recovery. It also finds no conclusive evidence of a causal link between the separate collapses. Knapp and Manning caution against over-precise climate explanations and chronologies, and conclude there is no final solution. [1] [2]