Means Islam accepted slavery and concubinage considering it a social need.
From the en.wikipedia.org
A mere dozen Mexican priests were in attendance, some of them living in open concubinage.
From the time.com
Here, the Church dealt with issues of simony, concubinage of the clergy.
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It banned arranged marriages, concubinage and child betrothal.
From the cnn.com
The impetus for the reforms was corruption within the church, particularly simony and concubinage.
From the en.wikipedia.org
Concubinage differed from marriage chiefly in the status of children born from the relationship.
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In 1950, he announced a new marriage law, banning forced marriages, domestic abuse and concubinage.
From the cnn.com
In Louisiana and former French territories, a formalized system of concubinage called placage developed.
From the en.wikipedia.org
The nature of this relationship is variously described as concubinage, a legal marriage, or a Friedelehe.
From the en.wikipedia.org
More examples
Cohabitation without being legally married
Concubinage is the state of a woman in an ongoing, usually matrimonially-oriented relationship with a man who cannot be married to her, often because of a difference in social status.
The state of cohabiting or living together as man and wife while not married; The state of being a concubine
A women and man living together without being husband and wife