Same-sex union legislation legislation of unregistered cohabitation was introduced in the Netherlands in June 1979. However, the first substantial recognition of same-sex couples didn't occur before the introduction of a new legal form, that of registered partnerships, which was first enacted in Denmark in June 1989. Many countries have followed with similar legislation since then. Legislation of these forms of legal unions still occur with a variety of different names, even after the introduction of same sex marriage, although sometimes they are overwritten by subsequent legislation of same-sex marriage. There are currently seventeen countries that have an alternative form of legal recognition other
Domestic partnership a contractual form of civil union between two adults bringing additional rights and responsibilities, but less so than marriage. Hungary has domestic partnerships, whereas most other nations in Europe recognize some form of civil unions, also called a registered partnership, or civil partnership for same-sex partners, which afford rights similar to marriage to LGBT couples. Croatia also had domestic partnerships until June 2014 when Croatian parliament passed a law allowing civil partnerships for same-sex couples giving them all rights except adoption rights. In Hungary, since 1995 domestic partnership in the form of unregistered cohabitation offers a limited set of rights