Disposal of human corpses


The disposal of human corpses, also called final disposition, is the practice and process of dealing with the remains of a deceased human being. Disposal methods may need to account for the fact that soft tissue will decompose relatively rapidly, while the skeleton will remain intact for thousands of years under certain conditions.
Several methods for disposal are practiced. A funeral is a ceremony that may accompany the final disposition. Regardless, the manner of disposal is often dominated by spirituality with a desire to hold vigil for the dead and may be highly ritualized. In cases of mass death, such as war and natural disaster, or in which the means of disposal are limited, practical concerns may be of greater priority.
Ancient methods of disposing of dead bodies include cremation practiced by the Romans, Greeks, Hindus, and some Mayans; burial practiced by the Chinese, Japanese, Bali, Jews, Christians, and Muslims, as well as some Mayans; mummification, a type of embalming, practiced by the Ancient Egyptians; and the sky burial and a similar method of disposal called Tower of Silence practiced by Tibetan Buddhists, some Mongolians, and Zoroastrians.
A modern method of quasi-final disposition, though still rare, is cryonics; this being putatively near-final, though nowhere close to demonstrated.

Commonly practiced legal methods

Some cultures place the dead in tombs of various sorts, either individually, or in specially designated tracts of land that house tombs. Burial in a graveyard is one common form of tomb. In some places, burials are impractical because the groundwater is too high; therefore tombs are placed above ground, as is the case in New Orleans, Louisiana, US. Elsewhere, a separate building for a tomb is usually reserved for the socially prominent and wealthy; grand, above-ground tombs are called mausoleums. The socially prominent sometimes had the privilege of having their corpses stored in church crypts. In more recent times, however, this has often been forbidden by hygiene laws.
Burial was not always permanent. In some areas, burial grounds needed to be reused due to limited space. In these areas, once the dead have decomposed to skeletons, the bones are removed; after their removal they can be placed in an ossuary.

Ground burial

A ground burial is usually accomplished by excavating a pit or trench, placing the deceased and objects in it, and covering it over. Humans have been burying their dead for over 100,000 years. Burial practices and rites varied from culture to culture in the past and still vary to this day. Burial is often seen as indicating respect for the dead. It has been used to prevent the odor of decay, to give family members closure, and prevent them from witnessing the decomposition of their loved ones.

Cremation

Cremation is also an old custom; it was the usual mode of disposing of a corpse in ancient Rome. Vikings were occasionally cremated in their longships, and afterwards the location of the site was marked with standing stones.
Since the latter part of the twentieth century, despite the objections of some religious groups, cremation has become increasingly popular. Jewish law forbids cremation, believing that the soul of a cremated person will be unable to find its final repose. The Roman Catholic Church forbade it for many years, but since 1963 the church has allowed it, as long as it is not done to express disbelief in bodily resurrection. The church specifies that cremated remains be either buried or entombed; they do not allow cremated remains to be scattered or kept at home. Many Catholic cemeteries now have columbarium niches for cremated remains, or specific sections for those remains. Some denominations of Protestantism allow cremation; the more conservative denominations generally do not. The Eastern Orthodox Church and Islam also forbid cremation.
Among Hindus, Jains, Sikhs and some sects of Buddhists such as those found in Japan, cremation is common. This final disposition became modern to the world in the 1870s as an alternative to burials. Italian professor, Ludovico Brunetti, introduced the first dependable cremation chamber in 1873. Sir Henry Thompson, 1st Baronet founded Cremation Society of Great Britain. Francis Julius LeMoyne opened America's first crematory known as LeMoyne Crematory in Washington, Pennsylvania. Europe's first crematoriums respectively opened in Woking, England and Gotha, Germany. William Christopher Macdonald funded Canada's first crematorium at Mount Royal Cemetery in 1901. It was built by Sir Andrew Taylor. Australia's first crematorium operated at Adelaide's West Terrace Cemetery that same year. It was introduced by Dr. Robert Tracey Wilde and John Langdon Parsons. Wellington City Council's Karori Cemetery introduced New Zealand's first crematorium when it opened its Karori Crematorium eight years later. United States of America's national cremation service provider Neptune Society originated from Plantation, Florida in 1973, but incorporated twelve years later. Its sibling companies, Trident Society and National Cremation Society additionally opened in 1973.

Immurement

Immurement of corpses is the permanent storage in an above-ground tomb or mausoleum. A tomb is generally any structurally enclosed interment space or burial chamber, of varying sizes. A mausoleum may be considered a type of tomb, or the tomb may be considered to be within the mausoleum. One of the most famous immurements sites is the Taj Mahal located in Agra, India. The Taj Mahal was built by Emperor Shah Jahan in memory of his wife, Empress Mumtaz Mahal. Both of their bodies were buried in this building.

Less common legal methods

Sky burial

Sky burial allows dead bodies to be eaten by vultures on open grounds or on top of specially built tall towers away from human sight. Sky burials can be followed by optional automatic cremations of the skeletons left behind, or the bones can then be stored or buried, as practiced by some groups of Native Americans in protohistoric times. Sky burials were practiced by the ancient Persians, Tibetans and some Native Americans in protohistoric times. Specifically, the conditions of a shallow active layer as well as the lack of firewood led the Tibetans to practice jhator or "giving alms to the birds". The Zoroastrians in Mumbai and Karachi placed bodies on "Towers of Silence", where birds then could decompose the bodies. Sky burials can provide benefits to the environment, since it does not produce air pollution and the decomposition of the body occurs fairly quickly, when compared to other forms of disposal practices. Exposures, which can be a form of sky burial, are where the corpse is stripped of its flesh, leaving only the bones. The bones can then either be cremated or buried whole, as stated above.

Burial at sea

In past generations, a "burial at sea" has meant the deliberate disposal of a corpse into the ocean, wrapped and tied with weights to make sure it sinks. It has been a common practice in navies and seafaring nations; in the Church of England, special forms of funeral service were added to the Book of Common Prayer to cover it. In today's parlance, "burial at sea" may also refer to the scattering of ashes in the ocean, while "whole body burial at sea" refers to the entire uncremated body being placed in the ocean at great depths. Laws vary by jurisdictions.
The concept may also include ship burial, a form of burial at sea in which the corpse is set adrift on a boat.

Composting

The process of composting human corpses, also called natural organic reduction or terramation, turns organic matter into soil conditioner that is unrecognizable as human remains. It is performed by placing the body in a mix of wood chips, allowing thermophile microbes to decompose the body. In the United States, human composting has been legalized in six states: Washington, Colorado, Vermont, Oregon, California, and New York. The first such composting facility, based in Kent, Washington, accepted bodies in December 2020. It developed from an earlier composting idea, formulated by architect Katrina Spade of Seattle, Washington, as the Urban Death Project.
The New York State Catholic Conference opposes this procedure and laws that legalize it.

Dissolution

Dissolution involves the breaking down of the body by solvation, e.g. in acid or a solution of lye, followed by disposal as liquid.
A specific method is alkaline hydrolysis. Advocates claim the process is more environmentally friendly than both cremation and burial, due to emissions and embalming fluids respectively. On the other hand, many find the idea of being "poured down the drain" to be undignified.

Other less common

  • Donation for study: after embalming the body is donated, usually to a medical institution, where it is dissected, and studied. Cadavers have also been used in experiments that would otherwise be fatal, such as crash tests. The remains are usually eventually cremated.
  • * A body farm involves a similar method in which the body is not embalmed, and left to decompose to study the process of decomposition.
  • Space burial
  • In some traditions, for example that practiced by the Spanish royal family and Judaism in Second Temple period, the soft tissues are permitted to rot over a period of decades, after which the bones are entombed.
  • Diamond synthesis, in which the remains of a body are converted into diamonds.

    Means of preservation

In some cases an attempt is made to preserve some or all of a body. These methods include:
Human remains of archaeological or medical interest are often kept in museums and private collections. This practice is controversial. In the cases of Native Americans in the United States, possession of remains and related objects is regulated by the NAGPRA Act of 1990.