 As noted above, the ethnographic record indicates that all cultures are structured by norms—rules that guide behavior and standards by which it is evaluated (Brown 1991). Evidence also suggests that norms are fairly evolutionarily ancient, as there is little indication that the capacity for norms spread from society to society in the recent past. Anthropologists also have shown that norms governing, e.g., food sharing, marriage practices, kinship networks, communal rituals, etc., regulate the practices of extant hunter-gatherers and relatively culturally isolated groups, which would be unlikely if norms were a recent innovation (see J. Henrich 2015 for a review). Much attention, however, has been given to the ways in which the prevailing sets of norms vary between cultures (House, Kanngiesser, et al. 2020; cf. Hofstede 1980, 2001) and the manner in which packages of norms develop and change over time within particular cultures (Gaus 2016, Schulz et al. 2019; cf. Inglehart 1997; Bednar et al. 2010).