Since the late twentieth century, major social changes in Western countries have led to changes in the demographics of marriage, with the age of first marriage increasing, fewer people marrying, and more couples choosing to cohabit rather than marry.
For example, the number of marriages in Europe decreased by 30% from 1975 to 2005.
Civil marriage recognizes and creates the rights and obligations intrinsic to matrimony before the state.
When a marriage is performed with religious content under the auspices of a religious institution it is a religious marriage.
In the 21st century, there continue to be controversies regarding the legal status of married women, legal acceptance of or leniency towards violence within marriage (especially sexual violence), traditional marriage customs such as dowry and bride price, forced marriage, marriageable age, and criminalization of consensual behaviors such as premarital and extramarital sex.
The word "marriage" derives from Middle English mariage, which first appears in 1250–1300 CE.
This in turn is derived from Old French, marier (to marry), and ultimately Latin, marītāre, meaning to provide with a husband or wife and marītāri meaning to get married.
The adjective marīt-us -a, -um meaning matrimonial or nuptial could also be used in the masculine form as a noun for "husband" and in the feminine form for "wife".
Historically, in most cultures, married women had very few rights of their own, being considered, along with the family's children, the property of the husband; as such, they could not own or inherit property, or represent themselves legally (see for example coverture).
In Europe, the United States, and other places in the developed world, beginning in the late 19th century and lasting through the 21st century, marriage has undergone gradual legal changes, aimed at improving the rights of the wife.
In countries governed by a mixed secular-religious legal system, such as in Lebanon and Israel, locally performed civil marriage also does not exist within the country, preventing interfaith and various other marriages contradicting religious laws from being entered into in the country, however, civil marriages performed abroad are recognized by the state even if they conflict with religious laws (in the case of recognition of marriage in Israel, this includes recognition of not only interfaith civil marriages performed abroad, but also overseas same-sex civil marriages).
The act of marriage usually creates normative or legal obligations between the individuals involved, and any offspring they may produce or adopt.
Whom they marry may be influenced by socially determined rules of incest, prescriptive marriage rules, parental choice and individual desire.