Sheng nu cites studies that show that women are now breaking the tradition of "mandatory marriage" to have fewer children or marry later on in life. Other typologically similar terms that are still used in the modern lexicon of other countries and cultures show the concept has existed in some cases as far back as the 16th century. The term spinster was used to describe unmarried or single women of a marriageable age. It wasn't until 2004 when the Civil Partnership Act replaced the word spinster with "single" in the relationship history section of marriage certificates in the UK. Subsequently, at the
Bachelor party prior to their wedding, called "Polterabend". At the Polterabend, the guests break old porcelain and earthenware to bring luck to the couple's marriage. The tradition is said to go back to pre-Christian times; by noisily breaking ceramics, evil spirits – especially spirits of envy – are supposed to be driven out. In the last couple of years, Anglo-style bachelor parties have become more and more popular among bachelors. In parts of northern Germany that lack a Carnival tradition, funny costuming has become a popular part of bachelor or bachelorette parties. Some parts of Germany have a related custom, in which