I want to know the answer to the following question:
During what historical epoch did Britons begin drinking ale?
All the background I'm provided with is that "After the departure of Roman authority in the 5th Century and the fall of the Romano-British kingdoms, the Anglo-Saxons established alehouses that grew out of domestic dwellings, the Anglo-Saxon alewife would put a green bush up on a pole to let people know her brew was ready.". Is that enough to answer the question?
Answer: no