The illegal status of multiple marriages in many parts of the world has not stopped the formation of communities and sub-cultures that practice polyamory and informal polygamy. There are several accounts of attempted private polygamist communities in Western Europe and North America. However, these communities, for the most part, have eventually disbanded. In Western culture there are few or no examples of widespread acceptance of polyamory. This does not mean that polyamorous relationships in Western culture (and subcultures) do not exist. In the United States it is estimated that polyamory is practiced by as much as 10% of the population. Polyamory exists mainly as isolated instances in which those in relationships have made agreements with their significant other(s). There are, however, many variations and examples of polyamorous relationships.