Xu Fu , is a famous alchemist, Taoist celebrity in the Qin Dynasty , and has served as the imperial physician of Qi Shihuang , and was born in Hang of the Warring States Period .
During the reign of Qin Shihuang, Xu Fu led three thousand boys and women to cross the east from the coast of Shandong. The legend spread across southern Korea and Japan, and became a good story of cultural exchanges between China, Japan and South Korea in history. It has been a hot topic in research and discussion for thousands of years. Now it has extremely important academic value for .

Xu Fu Dongdu is a familiar story for us. Under the order of Qin Shihuang, Xu Fu traveled east twice, arrived at today's Korean Peninsula, Japan and other places, and went away forever during the second crossing to the east. The statement that the Japanese circulating online today is a descendant of Xu Fu is inaccurate because there were already indigenous people in Japan at that time. But Xu Fu's travel to Japan at that time did bring advanced culture and technology to Japan during the Yayoi era and promote the development of Japanese history.

Today I am not talking about this, but why did Xu Fu go away and never return after he traveled to Japan?
This is because Xu Fu did not get the elixir when he first traveled to the east. Before he returned, the Qin Dynasty broke out in a very famous "cracking of Confucianism" incident in history.
" Burning books and burying scholars " is very famous in history. Many people often regard "burning books" and "burning scholars" as one thing, but in fact two things. In the second year of "burning books", the "cracking of scholars" incident occurred. "Cracking Confucianism" is not a direct continuation of "burning books", but is caused by some alchemists and Confucian scholars slandering Qin Shihuang.

After unifying China, Qin Shihuang had fantasized and wanted to seek the immortal medicine. The alchemist Hou Sheng, Lu Sheng and and others agreed to find this medicine for Qin Shihuang. Hou Sheng and Lu Sheng knew that they could not get this medicine, so they were sentenced to death according to Qin Rule , so they not only fled, but also slandered Qin Shihuang's stubbornness and full-time prison officers, etc.
After hearing this, Qin Shihuang was furious and ordered the investigation on the charge of "slandering the head of Guizhou", and personally determined that more than 460 people were buried alive in Xianyang . This is the "burying scholars" incident. In addition, what we are trapped is not Confucianism, but alchemist.

The "cracking of scholars" incident happened just before Xu Fu returned from the sea for the first time. Xu Fu did not seek the elixir, and he was also among the condemned, but he survived because he did not return. In the 37th year of Qin Shihuang (210 BC), Xu Fu returned to
Langya. He exonerated himself with the grounds that "the medicine of Penglai can be obtained, but he is often suffering from marmoset fish." Qin Shihuang, who was keen on seeking immortality, shot a giant fish with a crossbow and opened the way for Xu Fu, so Xu Fu began his second crossing to the east. This time, the East was a political refuge.
Because of the cruel "cracking of scholars", Xu Fu followed Lu Sheng's behavior of seeking immortality and never came back after traveling to Japan.