One has it that the Chinese Empress Hsi Ling - Shi noticed that a cocoon had fallen from a mulberry tree into her cup of tea.
Kāds nostāsts vēstī, ka reiz Ķīnas imperatora sieva Sji Ļinši pamanījusi, ka viņas tējas tasē no zīdkoka zara iekritis kāds kokons.