Pin, a flexible needle, mostly made of metal. One end is fixed, the other end is sharp and can be opened and closed, mostly fixed by metal. Used to hold pieces of cloth, paper, etc. together. Divided into pins, and paper clips (paper clips, also known as safety pins).
The origin of the safety pin dates back to the Mycenaean culture of the 14th century BC (Late Third Age Mycenaean). Known then as "Fibulae" (plural, fibula singular), they were used in the same way and looked similar to today's safety pins. But then the safety pin was lost.
It was not until 1849 that the modern safety pin was reinvented by the American inventor Walter Hunt, when its patent price was four hundred dollars.
In fact, the invention of pins originated in the middle of the 19th century. In order to find a piece of useful information from a large number of documents conveniently and quickly, people began to use a tailor to use Stick Pin to pin the documents at the corner of the paper, but they often pricked their fingers. The idea of inventing a safe and effective office product was conceived in the minds of three people at about the same time, but today it is generally believed that the inventor of the paperclip was the Norwegian mathematician Johan Waller, because of the three people whose sketches of his design are marked The date is the earliest - 1899.
In Norway, this has always been a matter of great pride to the people of the country. During World War II, the German occupying forces banned Norwegians from using buttons with the initials of the Norwegian King, and they attached paper clips to their clothes to emphasize their loyalty to national traditions. Not only that, in February 1990, a 5-meter-high paperclip-shaped stainless steel monument was erected in the center of the capital Oslo.