original_query: What is the significance of the southern end of the bridge in Anglo-Saxon London?
query: What is the significance of the southern end of the bridge in Anglo-Saxon London?
answer: The southern end of the bridge in Anglo-Saxon London, established as Southwark or Suthringa Geworc ('defensive work of the men of Surrey'), was one of two defended Boroughs built to protect the bridge (likely rebuilt at that time) and marked the beginning of London's development of its own unique local government.