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Scientists in China say they've discovered the world's oldest known cheese -- from three and a half thousand years ago.

They analysed dairy samples found with Bronze Age bodies that were buried in the Xinjiang region of western China -- and found fermenting microbes from kefir cheese.

Newshour鈥檚 Fuchsia Dunlop is the author of many books on Chinese cuisine and its history . . most recently "Invitation to a Banquet -- The Story of Chinese Food" ... James Menendez asked her if she
was surprised by the discovery?

(picture: dig where ancient cheese was discovered; credit - Danilo Family)