Religious residue: The impact of childhood religious socialization on the religiosity of nones in France, Germany, Great Britain, and Sweden

One of the distinguishing features of religious life in Western Europe in recent decades has been the sharp increase in the proportion of people who identify as unaffiliated with any religious tradition (religious nones). Non‐affiliation entails a rejection of religious belonging, not the absence of all religious belief and practice; yet the determinants of religiosity among nones have not been fully explored. Drawing on data from the 1998–2018 ISSP surveys in four West European countries (France, Germany, Great Britain, and Sweden), I test the impact of childhood religious socialization on the religiosity of unaffiliated adults by comparing lifelong nones, who were never religiously affiliated, with disaffiliates, who were raised within a religious tradition and have since exited organized religious life. Disaffiliates are consistently more religious than lifelong nones due to religious residue from childhood, with greater residue found among those who were more religiously committed as children. Religious decline among the unaffiliated over time, combined with the increasing proportion of lifelong nones and second‐generation lifelong nones who lack even an inherited, minimal religious residue, suggest that secularization will gather momentum

Bucking the Trend: South African Jewry and Their Turn Toward Religion

Across the Jewish world religious polarization is gaining momentum. At the secular end of the spectrum people are switching away from religion while at the religious pole fertility levels are high. This trend is evident among South African Jewry; data from the 2019 Jewish Community Survey of South Africa (N = 4193) show that the community is becoming polarized, and the traditional center ground is collapsing. However, unlike many other Jewish communities today, switching toward more religious subgroups than the one in which one was raised is more common in South Africa than switching away from them. This tendency is most pronounced among people born in the 1960s and 1970s. A similar trend characterizes South African non-Jews. We argue that coming of age in a period of profound political and social instability explains the increased likelihood of switching toward religion. The effect is more marked among Jews due to distinct communal characteristics and history that provided the optimal conditions for switching towards a more religious lifestyle. This paper highlights the necessity of examining internal processes that are unique to the Jewish community alongside broader developments to improve our understanding of religious polarization among Jews

Genome-wide data from medieval German Jews show that the Ashkenazi founder event pre-dated the 14th century

We report genome-wide data from 33 Ashkenazi Jews (AJ), dated to the 14th century, obtained following a salvage excavation at the medieval Jewish cemetery of Erfurt, Germany. The Erfurt individuals are genet-ically similar to modern AJ, but they show more variability in Eastern European-related ancestry than mod-ern AJ. A third of the Erfurt individuals carried a mitochondrial lineage common in modern AJ and eight carried pathogenic variants known to affect AJ today. These observations, together with high levels of runs of homozygosity, suggest that the Erfurt community had already experienced the major reduction in size that affected modern AJ. The Erfurt bottleneck was more severe, implying substructure in medieval AJ. Overall, our results suggest that the AJ founder event and the acquisition of the main sources of ancestry pre-dated the 14th century and highlight late medieval genetic heterogeneity no longer present in modern AJ.The study was funded by the Israel Science Foundation grant 407/17 and the United States-Israel Binational Science Foundation grant 2017024 to S.C., by the National Science Foundation (USA) grants 1912776 and 0922374 to V.R., by the MCIN/AEI/10.13039/501100011033 and by "ESF Investing in your future" grant "Ayudas para contratos Ramon y Cajal" to I.O., and by the following grants to D.R.: NIH grants GM100233 and HG012287; the Allen Discovery Center program, a Paul G. Allen Frontiers Group advised program of the Paul G. Allen Family Foundation; John Templeton Foundation grant 61220; a private gift from Jean-Francois Clin; and the Howard Hughes Medical Institute