Group marriage is technically polygyny, except that it was mostly a figure of the 1970s and frequently included multiple men and women, with women having relationships with more than one man.

Group marriage is technically polygyny, except that it was mostly a figure of the 1970s and frequently included multiple men and women, with women having relationships with more than one man.

Stock image of wedding rings sitting on a Bible. A religious group in California warned that overturning Prop 8 to protect same-sex marriage could have "unintended consequences." jodie777/Getty Images ...

DOYLESTOWN, Pa. (CBS) -- Valentine's Day may be the most romantic day of the year to get married. A lot of people had the same idea, so they decided to take part in a group wedding marriage ...