She asked her husband to give her a grove of mulberry trees, where she could keep the worms that made these cocoons. She is credited with inventing the silk reel, which joins thin silk threads into a thicker thread strong enough for weaving. She is also credited with inventing the first silk loom. It is not known how much, if any, of this story is true, but historians do know that silk was first made in China. Leizu shared what she found out with others and the knowledge became common.