A bachelor party, also known as a stag party, stag night, stag do, stag weekend (in the United Kingdom, Commonwealth countries, and Ireland), or a buck's night (in Australia) is a party held for the man who is to shortly enter marriage.
A bachelor party is usually planned by the groomsman, occasionally with the assistance of a bachelor party planning company.
The first references to Western bachelor parties in the Oxford English Dictionary date to the 19th century. Traditionally, bachelor parties involved a black tie banquet hosted by the father of the groom that included a toast in honour of the groom and bride. Since the 1980s, bachelor parties in the United States have involved vacationing to a foreign destination, or have featured female company such as strippers or topless waitresses.
The bachelor party dates back as early as the 5th century B.C. The ancient Spartans celebrated the groom's last night as a single man in which they held a dinner and made toasts on his behalf.
In 1896, Herbert Barnum Seeley, a grandson of P. T. Barnum, threw a stag party (known as the "Awful Seeley Dinner") for his brother at restaurant Sherry's in New York City. The party had a dancer, nicknamed "Little Egypt", who allegedly danced naked in desserts. The party was dissolved in the early morning by an officer. Afterwards, the Seeley family brought the police officer to the police board trial for "conduct unbecoming to an officer of the law." At that time, that incident brought the light to the "behind closed doors" matters with bachelor parties.
The term "bachelor", originally meaning "a young knight-in-training", was firstly mentioned in the 14th century to refer to an unmarried man in Geoffrey Chaucer's The Canterbury Tales. In 1922, the term "bachelor party" was published in William Chambers's Journal of Literature, Science and Arts and was described as a "jolly old" party.