大象传媒

An amateur baker in the United States has made bread from yeast microbes that had been asleep for 4,500 years.

They had been held in two museums in the city of Boston.

One of the people involved was Seamus Blackley, who is better known for being one of the inventors of the Xbox.

Seamus' tweets about baking the sourdough bread went viral on social media.

(Photo: The yeast being used to make bread. Credit: Max Blackley)