When considering one’s lineage, most people in the United States look to both their father’s and mother’s sides. Both paternal and maternal ancestors are considered part of one’s family. This pattern of tracing kinship is called bilateral descent. Note that kinship, or one’s traceable ancestry, can be based on blood or marriage or adoption. Sixty percent of societies, mostly modernized nations, follow a bilateral descent pattern. Unilateral descent (the tracing of kinship through one parent only) is practiced in the other 40 percent of the world’s societies, with high concentration in pastoral cultures (O’Neal 2006). There are three types of unilateral descent: patrilineal, which follows the father’s line only; matrilineal, which follows the mother’s side only; and ambilineal, which follows either the father’s only or the mother’s side only, depending on the situation. In patrilineal societies, such as those in rural China and India, only males carry on the family surname. This gives males the prestige of permanent family membership while females are seen as only temporary members (Harrell 2001). U.S. society assumes some aspects of patrilineal decent. For instance, most children assume their father’s last name even if the mother retains her birth name. In matrilineal societies, inheritance and family ties are traced to women. Matrilineal descent is common in Native American societies, notably the Crow and Cherokee tribes. In these societies, children are seen as belonging to the women and, therefore, one’s kinship is traced to one’s mother, grandmother, great grandmother, and so on (Mails 1996). In ambilineal societies, which are most common in Southeast Asian countries, parents may choose to associate their children with the kinship of either the mother or the father. This choice may be based on the desire to follow stronger or more prestigious kinship lines or on cultural customs such as men following their father’s side and women following their mother’s side (Lambert 2009). Tracing one’s line of descent to one parent rather than the other can be relevant to the issue of residence. In many cultures, newly married couples move in with, or near to, family members. In a patrilocal residence system it is customary for the wife to live with (or near) her husband’s blood relatives (or family of orientation). Patrilocal systems can be traced back thousands of years. In a DNA analysis of 4,600-year-old bones found in Germany, scientists found indicators of patrilocal living arrangements (Haak et al 2008). Patrilocal residence is thought to be disadvantageous to women because it makes them outsiders in the home and community; it also keeps them disconnected from their own blood relatives. In China, where patrilocal and patrilineal customs are common, the written symbols for maternal grandmother (wáipá) are separately translated to mean “outsider” and “women” (Cohen 2011). Similarly, in matrilocal residence systems, where it is customary for the husband to live with his wife’s blood relatives (or her family of orientation), the husband can feel disconnected and can be labeled as an outsider. The Minangkabau people, a matrilocal society that is indigenous to the highlands of West Sumatra in Indonesia, believe that home is the place of women and they give men little power in issues relating to the home or family (Joseph and Najmabadi 2003). Most societies that use patrilocal and patrilineal systems are patriarchal, but very few societies that use matrilocal and matrilineal systems are matriarchal, as family life is often considered an important part of the culture for women, regardless of their power relative to men.

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