What made us settle on cow’s milk and chicken eggs as our standard milk/egg?

Question

I understand that people also eat quail eggs, goat milk or etc etc due to geography (?) – but at what point and why did many settle on chicken eggs and cow milk?

Thank you

ETA: WOOAAAAAAH a great deal of responses here. thank you!!!!

In: 16218

Answer 1

We have lots of good land for cows, and cows produce a lot of milk. Go to someplace like Greece and you get mainly goat and sheep milk, animals that love the rocky, hilly terrain that cows don’t do well on.