A Ketubah in Aramaic, a Jewish marriage-contract outlining the duties of each partner
Societies have always placed restrictions on marriage to relatives, though the degree of prohibited relationship varies widely. In almost all societies, marriage between brothers and sisters is forbidden, with Ancient Egyptian, Hawaiian, and Inca royalty being the rare exceptions. In many societies, marriage between some first cousins is preferred, while at the other extreme, the medieval Catholic church prohibited marriage even between distant cousins. The present day Catholic Church still maintains a standard of required distance (in both consanguinity and affinity) for marriage.
In many societies, various rights are allotted only to married individuals .

Board games have a long history and have been played in most cultures and societies; some even pre-date literacy skill development in the earliest civilizations. A number of important historical sites, artifacts and documents exist which shed light on early board games. The most of important of these include:


Aviculture is the practice of keeping and often breeding pet birds, generally companion parrots, and the culture that forms around it. Aviculture is generally focused not just on the raising and breeding of birds, but also on preserving avian habitat, and public awareness campaigns.
Youth conversing with suitors
Young men courting a youth in a garden. From the Haft Awrang of Jami, in the chapter "A Father Advises His Son About Love". Freer and Sackler Galleries, Smithsonian Institution, Washington, DC.