The earliest idea of human regeneration should have originated from two stories: the Bible and ancient Greek mythology.

（1） Bible - God created a woman with one rib of Adam

On the sixth day after God created heaven and earth, light and air, mountains and seas, flowers and trees, sun, moon and stars, birds and fish, and finally various animals, God created humans.

The Bible records: "The Lord God made man out of the dust of the earth, and breathed life into his nostrils, and he became a living being with a spirit."

God gave him a name, Adam. Adam has a body and a soul, which is different from other animals.

In order to prevent Adam from living alone, God took out a rib from him while he was asleep and used it to create a woman. This woman is Eve, who later became Adam's wife.

（2） Ancient Greek Mythology - The Liver Regeneration of Prometheus

Prometheus is one of the Titans.

In the war between Zeus and the giants, he stood on the side of the new Olympian mountain god. He made the first man out of clay. Athena endowed this man with a soul and divine life.

Prometheus also spent a lot of time and energy creating fire and gifting it to humanity. Fire makes people the spirit of all things.

Afterwards, the first joint meeting between gods and humans was held. This meeting will decide which part of the grilled animals should be given to the gods and which part should be given to humans.

Prometheus cut open a cow and divided it into two parts: he placed the meat under the skin and the bones under the fat. Because he knew that selfish Zeus loved to eat fat. Zeus saw through his tricks. Prometheus favored humans, which made Zeus unhappy. Therefore, he arrogantly took fire away from human hands. However, Prometheus managed to steal the heavenly fire and secretly brought it to humanity.

Zeus was furious at his reckless disobedience. He ordered other mountain gods to tie Prometheus to a rock in the Caucasus Mountains with chains. A hungry eagle pecks at his liver every day, and his liver always grows back. His pain will last for 30000 years. And he resolutely faced suffering, never losing his courage in front of Zeus.

Finally, Hagrid restored the friendship between Prometheus and Zeus, found the golden apple, killed the eagle, and thus rescued an old friend of humanity. (See Baidu Baike)

Myth is ultimately a myth, but the rapid development of modern medicine, biology, and new material technology has achieved the regeneration and repair of simple tissues (such as bones and skin). We hope that the beautiful wishes of the ancients will soon become a reality.