Editing Digging stick (section)

====China====
The Chinese call the digging stick "lei"(耒), which is said to have been invented by Shennong.<ref>《易經·繫辭下》：包犧氏沒，神農氏作，斲木為耜，揉木為耒，耒耨之利，以教天下，蓋取諸益。[https://ctext.org/book-of-changes/xi-ci-xia/zh]</ref> The most primitive lei had only one prong, while improved versions often had two prongs. "lei" is often mentioned together with "si" (耜，[[Hoe_(tool)|push hoe]]) as the most primitive agricultural tool in China.