Feta cheese
What is now called feta cheese was known to Ancient Greeks. Homer must have known about it. There were several references to the cheese in the Odyssey. According to the myth, the cyclops Polyphemos was the first cheese manufacturer. He carried the milk in animal-skin bags. He had collected the milk from his sheep. He was very surprised to see that days later the milk had become solid. When Polyphemus tried to eat it, it tasted well. He also found that as such a solid, it would go bad later than with milk.