I want to know the answer to the following question:
When was the greylag goose first domesticated by humans?
All the background I'm provided with is that "The greylag goose (Anser anser) was domesticated by the Egyptians at least 3000 years ago, and a different wild species, the swan goose (Anser cygnoides), domesticated in Siberia about a thousand years later, is known as a Chinese goose.". Is that enough to answer the question?