11. Pre-capitalistic forms of marriage discussed by Engels were group marriage and pairing marriage. 12. Marriages tend to be polyandrous, including group marriages and Mannie's own line marriage. 13. Related pages, such as group marriage , polygyny, and polyandry should also be discussed. 14. Public group marriages had also been planned across the North African kingdom as part of the festivities. 15. Among his other books were " Proposition 31, " which looked at legalized group marriage . 16. It is also not always visible when people sharing a residence consider themselves privately as a group marriage . 17. Archbishop Emmanuel Milingo, 71, was wed in a group marriage ceremony Sunday at the New York Hilton. 18. Spencer believed in social evolution and group marriage , whereas Mathews'was sympathetic to ideas of cultural diffusion. 19. Radakovich said of all the flora and fauna of the sexual undergrowth, the group marriage sect was the strangest. 20. The 71-year-old archbishop was wed in a group marriage ceremony Sunday at the New York Hilton.