A marriage was a negotiation and decision between parents and other older members of two families.
The boy and girl were typically told to get married, without a right to consent, even if they had never met each other until the wedding day.
The specific sub-category of forced child marriage is especially condemned.
In China, arranged marriages (baoban hunyin, 包办婚姻) - sometimes called blind marriages (manghun, 盲婚) - were the norm before the mid-20th century.
In the United Kingdom, uncle-niece marriages are considered incestuous and are illegal, but cousin marriages are not considered incestuous by the law and are legal, although there have been calls to ban first-cousin marriages due to health concerns.
Arranged child marriages are also observed in parts of the Americas.
Non-consanguineous arranged marriage is one where the bride and groom do not share a grandparent or near ancestor.
This type of arranged marriages is common in Hindu and Buddhist South Asia, Southeast Asia, East Asia and Christian Latin America and sub-Saharan Africa.
They were sometimes called picture-bride marriages among Japanese American immigrants because the bride and groom knew each other only through the exchange of photographs before the day of their marriage.
These marriages among immigrants were typically arranged by parents, or relatives from the country of their origin.