What satrted the Anglo-Saxon period roughly corresponds with which historical event?

The Anglo-Saxon period began around the 5th century AD, roughly corresponding with the withdrawal of Roman legions from Britain in 410 AD. This event marked the end of Roman rule in Britain, leading to the arrival of various Germanic tribes, including the Angles, Saxons, and Jutes. Their settlements and subsequent kingdoms laid the foundation for what would become England and its culture.