Origin of the statement: When fishermen in Hokkaido, Japan supply sashimi, because the peeled fillets are not easy to distinguish, they often take some fish skins and stab them with bamboo sticks to facilitate identification.

This bamboo stick and fish skin stuck on the fish fillet was originally called "sashimi", but the name "sashimi" was still preserved although this method was no longer used. Sashimi refers to things like fish, raw fish, sashimi, etc., and refers to dishes in which fresh fish and shellfish are sliced raw and dipped in seasonings for direct consumption.

Sashimi is the most distinctive food in Japanese cuisine. According to records, it became fashionable for Japanese to eat sashimi in the 4th century/kloc. At that time, people used the word "Wan" to summarize sashimi and sashimi-like foods.

At that time, "preserved" refers to raw shredded fish and shredded pork, and it can also refer to shredded fish and shredded pork soaked in vinegar. At that time, sashimi was just a cooking technique of "preserved". It was not until the15th century that soy sauce was introduced to Japan and was widely used that sashimi was gradually dipped in soy sauce.

References:

Baidu encyclopedia? sashimi