The “modern studies” of a system named for these people was founded by the activist Heide Göttner-Abendroth. Friedrich Engels theorized that “primitive communism” first arose in social structures named for these people, citing Lewis Morgan’s Ancient Society. The Lithuanian scholar Marija Gimbutas claimed that a social structure named for these people (10[1])dominated in “Old (10[1])Europe” (-5[1])until the invasion (10[1])of the Kurgan culture. The Moynihan Report controversially posited the “Black” form of a social structure (-5[1])named for these people as a downstream effect of over-incarceration. These people dominate in “focal” structures named (-5[1])for them common in the Caribbean, (10[1])which is related to a system where kinship is “lineal” in them, such as among the Iroquois. For 10 points, name these people who name a social structure contrasted with patriarchy. ■END■ (10[5])