Accordingly, there was little need for a temporary trial period such as dating before a permanent community-recognized union was formed between a man and a woman.

New types of relationships formed; it was possible for people to live together without marrying and without children.

Information about human sexuality grew, and with it an acceptance of all types of sexual orientations is becoming more common.

From about 1700 a worldwide movement perhaps described as the "empowerment of the individual" took hold, leading towards greater emancipation of women and equality of individuals.

Men and women became more equal politically, financially, and socially in many nations.

In the twentieth century, dating was sometimes seen as a precursor to marriage but it could also be considered as an end-in-itself, that is, an informal social activity akin to friendship.

It generally happened in that portion of a person's life before the age of marriage, enabled dates to be arranged without face-to-face contact.

Neurobiologist Robert Sapolsky constructed a reproductive spectrum with opposite poles being tournament species, in which males compete fiercely for reproductive privileges with females, and pair bond arrangements, in which a male and female will bond for life.

These species-particular behavior patterns provide a context for aspects of human reproduction, including dating.

However, one particularity of the human species is that pair bonds are often formed without necessarily having the intention of reproduction.

In modern times, emphasis on the institution of marriage, generally described as a male-female bond, has obscured pair bonds formed by same-sex and transsexual couples, and that many heterosexual couples also bond for life without offspring, or that often pairs that do have offspring separate.

Thus, the concept of marriage is changing widely in many countries.