The discovery of the mummy, also known as the Inca Ice Maiden, is significant because it provides valuable information about the Inca civilization, particularly their rituals and beliefs related to human sacrifice. The mummy was found in a well-preserved state and was believed to have been sacrificed around 500 years ago. The discovery also sheds light on the Inca's advanced knowledge of medicine and their ability to survive in harsh environments. Overall, the discovery of the Inca Ice Maiden provides a unique glimpse into the history and culture of the Inca people.