St. Hubert’s Key (, ) is a

sacramental A sacramental in Christianity is a material object or action (in Latin ''sacramentalia'') ritually blessed by a priest to signal its association with the sacraments and so to incite reverence during acts of worship. They are recognised by the Cat ...

in the form of a metal nail, cross, or cone. It was used in

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

until the early 20th century as a traditional cure for

rabies Rabies is a viral disease that causes encephalitis in humans and other mammals. Early symptoms can include fever and tingling at the site of exposure. These symptoms are followed by one or more of the following symptoms: nausea, vomiting, vi ...

and was named for St. Hubert, the

patron saint A patron saint, patroness saint, patron hallow or heavenly protector is a saint who in Catholicism, Anglicanism, or Eastern Orthodoxy is regarded as the heavenly advocate of a nation, place, craft, activity, class, clan, family, or perso ...

of hunters,

mathematicians A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History One ...

, opticians and metalworkers.

Description

The key was heated and pressed to the area where a person had been bitten by a dog believed to have rabies. If performed soon after the bite had occurred, the heat had the potential to cauterize and sterilize the wound, eradicating the rabies

virus A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1 ...

. The practice was endorsed by the

Catholic Church The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...

(the practice was seldom seen in Eastern Orthodox Church, Orthodox lands), and such keys were used by priests at places with which St. Hubert was associated, where the skin of humans and animals was branded as a protection against the bites of rabid dogs. This practice is recorded in the 1870s in the Ardennes region of France, where dogs were branded with St. Hubert's Key, as "a sure preventative of madness".

References

{{Reflist European culture History of Europe Rabies Traditional medicine