It is said that the Korean peninsula has a history of 5000 years, but due to the lack of direct evidence, historians in China and Japan do not recognize it. According to legend, the history of Korea can be traced back to the establishment of Dangen, who ruled Korea 1500 and retired as a mountain god. This legend is recorded in the Heritage of the Three Kingdoms. Primitive humans have lived there. The Paleolithic Age of the Korean Peninsula began in 700,000 BC and entered the Bronze Age in 10 BC. In the 4th century BC, it entered the Iron Age. Historians in South Korea and North Korea suspect that Koreans were originally Altai people living in the northern continent of Asia, and later gradually moved to the northern part of the Korean Peninsula and evolved. Since the 4th century BC, a slave country has been formed in the north. China's earliest collection of poems, The Book of Songs, contains the poem "There is land in the field, and there is melon peeling in the battlefield, which is the ancestor of the emperor". Lu and melon are both vegetables, and "peeling" and "mash" mean pickling. According to Xu Zhen's Shuo Wen Jie Zi, "pickles are pickles". It is recorded in Notes on Shangshu that "if you want to make soup, you can only eat salted plums", which shows that at the latest in the Wu Ding period of Shang Dynasty more than 3 100 years ago, the working people in China could pickle plums with salt for cooking. Thus, the pickled vegetables in China should be earlier than the Book of Songs, and should have originated in the Shang and Zhou Dynasties 3 100 years ago.

It can be inferred that kimchi originated in the late Shang Dynasty and early Zhou Dynasty. Korean culture is deeply influenced by China. /kloc-In the 3rd century, Koreans invented metal movable type printing. The first rain gauge in the world was invented in 144 1 year.