Mummy

A mummy is a human or animal body that has been preserved. This preservation prevents the soft tissues and organs from decaying. It happens through exposure to specific environmental conditions. These include extreme cold, very low humidity, or a lack of air. Chemicals can also be used to stop decay. Some experts only use the term for bodies embalmed with chemicals. However, the term has also covered naturally dried bodies since the 17th century.

Scientists divide mummies into two main categories. The first type is called anthropogenic mummies. These are created intentionally by people, often for religious reasons. The second type is called spontaneous mummies. These occur naturally due to unusual environments. Examples include bodies found in extremely dry heat or freezing cold. Some are found in acidic, oxygen-free conditions like bogs.

Ancient Egyptian mummification was a complex, multi-step process. The first goal was to stop decomposition. Embalmers removed the internal organs and washed the body with palm wine and spices. They left the heart inside because they believed it was the seat of thought and feeling. Next, they dried the body using a salt called natron. This salt was placed inside the body cavity and on the skin. This dehydration process lasted about forty days.

After dehydration, the body was prepared for burial. Priests wrapped the body in many layers of linen cloth. They placed small amulets between these layers to protect the deceased from evil. Finally, they coated the wrappings in resin. This resin acted as a barrier against moist air. The mummy was then placed in a coffin and sealed inside a tomb.

Evidence of deliberate mummification is much older than once thought. While Egypt is famous for it, other cultures practiced it much earlier. The Chinchorro people in Chile created mummies around 5050 B.C. In North America, the Spirit Cave mummies in Nevada are over 9,400 years old. Research shows smoke-dried mummification occurred in China and Southeast Asia over 10,000 years ago. In Egypt, a 5,600-year-old mummy was recently found using linen and plant oils.

Egypt also produced a massive number of animal mummies. Over one million animal mummies have been discovered in Egypt. Many of these were cats, which were highly significant. Others were sacred ibis birds. Radiocarbon dating shows many ibis mummies date between 450 and 250 B.C.

Modern science has transformed how we study these remains. In 1903, Howard Carter and Grafton Elliot Smith used an X-ray on Thutmose IV. This was the first X-ray of a mummy. In 1992, the First World Congress on Mummy Studies brought together over 300 scientists. This meeting helped integrate biomedical data with archaeology. Today, researchers use CT scanning to perform digital autopsies. These scans are so detailed they can reconstruct tiny linen pieces in 3-D.

These technological tools provide deep insights into ancient life. Digital scans allow scientists to study mummies without damaging them. They can determine causes of death and even study ancient lifestyles. For example, scans helped researchers understand the life of Tutankhamun. A 2008 scan also found an organic rod used to drain the brain. This discovery corrected older theories about the tools used by ancient embalmers.