
The Trojan War is a legend that sprang from a distant memory of a real Greek incursion into the Bronze Age city of Troy (in modern day Türkiye). This may have taken the form of annual piracy raids and/or encounters based on control of the Aegean Sea.
These real life encounters between Greeks and Trojans, led to the destruction of Troy circa 1150 BCE (likely though warfare and fire). Over hundreds of years, they were transformed into oral tales.