Digging into history reveals fascinating phenomena. The fact that the bodies of only five world leaders are still preserved permanently today. This is not merely a technological achievement but a story intertwined with the choices of the era and political decisions.

The concept of permanent body preservation was pioneered by the Soviet Union. When Lenin died in 1924, an ordinary burial was initially planned. However, the public’s mourning enthusiasm unexpectedly surged, leading to an urgent attempt at cryopreservation. This decision paved the way for subsequent advancements in body preservation technology.

Soviet scientists repeatedly conducted experiments and succeeded in developing a special preservative solution. They established a method to replace water in the body and inhibit bacterial growth. Lenin’s tomb is equipped with a constant-temperature cooling system, and specialized laboratory staff perform weekly repairs, regular full restorations, and sometimes minor transplant surgeries, maintaining his body in a near-perfect state for nearly 100 years.

Interestingly, the body of Stalin, another Soviet leader, was not subjected to such preservation techniques. Stalin’s body, buried in Lenin’s mausoleum in 1953, was cremated in 1961 as public opinion shifted over time. This illustrates that permanent preservation of a body is not solely a matter of technology but also heavily influenced by the historical evaluation at the time.

The case of Ho Chi Minh in Vietnam also demonstrates similar complexity. Despite his wish for cremation during his lifetime, his successors decided to preserve his body. During the Vietnam War, his body was secretly stored in a mountain cave for five years, with Soviet experts performing preservation treatments inside the cave while avoiding bombings. This episode highlights how political necessity can drive technological challenges.

The preservation of Nétú’s body in Angola posed further technical challenges. Soviet specialists developed a special pigment preservation technique for black skin and addressed new issues such as pigment leakage during the embalming process. His body is only publicly displayed on his birthday each year.

However, not all attempts at permanent preservation succeeded. Gottwald’s body, due to a lack of preservation technology, decayed in 1962 and was cremated. Dimitrov’s body was preserved for over 40 years but was ultimately cremated and buried in a public cemetery following political upheavals in Eastern Europe.

The body of the Mongolian leader Joba Mountain followed a similar fate. After undergoing embalming, it was placed in a mausoleum, but when the mausoleum was destroyed in 2005, his body was cremated according to Buddhist rituals.

From these cases, it becomes clear that the act of permanently preserving a body is a dual product of technology and history. Even with advanced preservation techniques, the fate of the body can change dramatically if the historical evaluation shifts. Bodies lying in crystal coffins are evidence of scientific achievement and also mirrors reflecting the course of history.