The existence of zombies had always been a controversial topic. In literature, zombies were often depicted as dead bodies without consciousness and emotions that could be resurrected and become a threat to humans. However, there was no conclusive evidence in history as to whether zombies really existed. Some historians and scientists believe that the concept of zombies is just a figment of imagination and fiction in literature and horror movies. They believed that the concept of zombies originated from ancient people's understanding of death and resurrection, as well as the decay process of animals 'corpses after death. However, these theories were not widely accepted because of the lack of conclusive evidence. During the Middle Ages and the Renaissance, some historians and doctors had described some dead bodies without consciousness and emotions as "zombies" or "resurrected corpses". However, these descriptions had not been verified by science because of the lack of conclusive experimental evidence. Therefore, there was no conclusive evidence of the existence of zombies in history. Although zombies are widely used in literature and movies, they are only fictional concepts and not real historical events.