The history of the development of the mill, the origin, the inventor, type

Mill, a long heritage of stone tools, the specific is very vague, a statement is: originated in the half slope period, the half slope people with a simple columnar stone with a flat stone plate crushed corn. Later after the development of wooden push handle, until the rice cultivation period, that is, Hemudu period, people again and again improved for rice milling used. Later, the technology became more sophisticated and almost every household had a mill. Some remote villages circulated a story:

According to legend, half-slope period a half-slope people in the sun corn when carrying a stone through, suddenly tripped, the stone out of the hand just smashed in the corn above the half-slope people over the past to move away from the stone found that the corn has been crushed corn has been crushed a piece of, so he had a sudden thought that the usual corn is hard and unpalatable crushed may become soft, and then invented the first simplest mill. The first and simplest mill. (The above content is only one-sided guess, just for reference!)