The city of Cambridge, Massachusetts, which is home to Harvard University, has officially recognized polyamory, making it the second city in the state to do so. Last week, the Cambridge City Council approved an ordinance amending the city’s existing statute so that domestic partnerships are not limited to only two people. The city of Sommerville, Massachusetts, the community just north of Cambridge, implemented a similar change last summer. A domestic partnership in the city that is home to Harvard University is now defined as “the entity formed by two or more persons” who are not related and "consider themselves to...