Evaluation of shoehorn

Obviously, the function of "shoehorn" is to help people put their feet into their shoes easily and smoothly with its "one-wrestling boost". An illustrated picture of Three Events in Ming Dynasty can be described as an encyclopedia of ancient social life, but there is no record of "kicking the shoe". The Origin of Things by German anthropologist Julius E. Lips recorded wooden pillows in Santa Cruz Islands, combs of West Africans and wooden pipes of Indians, and also wrote unicycles with sails in the south and "carts" in the north of ancient China, but it didn't talk about "shoehorns". It seems that this thing is too subtle! However, small inventions show great wisdom. The gadget is not big, even its life experience has been forgotten by people, but it is also a small skill to enjoy life, a very practical creation and a crystallization of wisdom. It is in the accumulation of various seemingly subtle "cleverness" throughout the ages that the ancient "four great inventions", computers and space shuttles and other shocking and even significant inventions and creations that changed the destiny of mankind were born.