 A second line of thought runs through the work of Michel Foucault. In his 1975–1976 lectures at the Collège de France, published as Society Must Be Defended, Foucault details the emergence of a discourse on race beginning in early 17th Century England. According to Foucault, race war discourse emerges through claims of illegitimacy against the Stuart monarchy. These claims were couched in the language of injustice as well as foreign invasion, in which an indigenous race is pitted against in invading outsider (2003, 60). Race, at this point, is not a biological concept, instead referring to lineage, custom, and tradition (2003, 77). Only later does this cultural notion of race transform into the scientific notion of race.