Social scientists such as Eric Klinenberg and Bella DePaulo show that for more and more of us, the «traditional» model of nuclear family life with a breadwinner husband, a dependent wife and two or three children is no longer relevant. In the United States, the nuclear family became the most common form of family structure in the 1960s and 1970s. Since that time, the number of North American nuclear families has gradually decreased, while the number of alternative family formations has increased; This phenomenon is generally rejected by members of philosophies such as social conservatism or familialism, who consider the nuclear family structure important. «Nuclear family.» Merriam-Webster.com Dictionary, Merriam-Webster, www.merriam-webster.com/dictionary/nuclear%20family. Retrieved 11 October 2022. In its most common usage, the term nuclear family refers to a household consisting of a father, mother and their children, all living in a family apartment.  George Murdock, an observer of families, gave an initial description: In the home, the concept of the nuclear family has been shaken by rising divorce rates. Thesaurus: All synonyms and antonyms of the nuclear family Professor Wolfgang Haak of the University of Adelaide discovers traces of the nuclear family in prehistoric Central Europe. An archaeological dig in Elau, Germany in 2005, analyzed by Haak, provided genetic evidence suggesting that the 13 individuals found in one tomb were closely related. Haak said: «By establishing the genetic links between the two adults and the two children buried together in a grave, we have demonstrated the presence of the classical nuclear family in a prehistoric context in Central Europe. Their unity in death indicates unity in life.
 This article does not consider the nuclear family to be «natural» or the only model of human family life. This does not establish the elementary family as a universal model or the oldest institution of human communities. For example, polygamous compounds are prevalent in ethnographic data, and models of household communities appear to have brought a high degree of complexity since their origins.  But I think Steve Austin has to team up with a Japanese objector to prevent a nuclear bomb from exploding or something. My diagnosis wreaked havoc on everyone in my nuclear family, harming them, hurting them for many years. The solution was to transform the nation`s internal security into the internal security of the nuclear family. Considered separately from childless couples, single parents, and unmarried couples with children, U.S. nuclear families appear to form a minority of households — with an increasing prevalence of other family arrangements. In 2000, nuclear families with biological parents of origin accounted for about 24.10 percent of U.S. households, up from 40.30 percent in 1970.
 About two-thirds of all children in the United States will spend at least some time in a single-parent household.  According to some sociologists, «[the nuclear family] no longer seems sufficient to cover the wide variety of household structures we see today.» (Edwards, 1991; Stacey, 1996). A new term was introduced, postmodern family, which is intended to describe the great variability of family forms, including single-parent families and couples without children.  Nuclear family households are now less common than households with couples without children, lone parents and unmarried couples with children.  The nuclear family is the most common type of family in the Western world, with the term gaining prominence in the United States of America during the 20th century. The family structures of a mixed couple and their children were present in Western Europe and New England in the 17th century, influenced by ecclesiastical and theocratic governments.  With the advent of proto-industrialization and primitive capitalism, the nuclear family became a financially viable social unit.  A nuclear family with two parents and their children, but not with extended family members such as aunts, uncles, grandparents.