Conversation so far:
Tell me about the Bronze Age collapse.
The Bronze Age collapse is so called by historians who study the end of the Bronze Age. ... Between 1200 and 1150 BC, the cultural collapse of the Mycenaean kingdoms, the Hittite Empire in Anatolia and Syria, and the Egyptian Empire in Syria and Canaan, interrupted trade routes and extinguished literacy.

Question: What is the evidence for it
Self-contained rewrite: What is the evidence for the Bronze Age collapse?