A civil union (also known as a civil partnership) is a legally recognized arrangement similar to marriage, created primarily as a means to provide recognition in law for same-sex couples. Civil unions grant some or all of the rights of marriage except child adoption and/or the title itself. Civil unions under one name or another have been established by law in several, mostly developed, countries in order to provide legal recognition of relationships formed by unmarried same-sex couples and to afford them rights, benefits, tax breaks, and responsibilities similar or identical to those of legally married couples. In 1989, Denmark was the first country to legalise civil unions, for same-sex couples; however most other developed democracies did not begin establishing civil unions until the 1990s or early 2000s, often developing them from less formal domestic partnerships. While civil unions are often established for both opposite-sex couples and same-sex couples, in a number of countries they are available to same-sex couples only. In Brazil, civil unions were first created for opposite-sex couples in 2002, and then expanded to include same-sex couples through a supreme court ruling in 2011. In the majority of countries that established same-sex civil unions, they have since been either supplemented or replaced by same-sex marriage. Civil unions are viewed by LGBT rights campaigners as a "first step" towards establishing same-sex marriage, as civil unions are viewed by supporters of LGBT rights as a "separate but equal" or "second class" status. Many jurisdictions with civil unions recognize foreign unions if those are essentially equivalent to their own; for example, the United Kingdom lists equivalent unions in the Civil Partnership Act 2004 Schedule 20. The marriages of same-sex couples performed abroad may be recognized as civil unions in jurisdictions that only have the latter. Overview and terminology The terms used to designate civil unions are not standardized, and vary widely from country to country. Government-sanctioned relationships that may be similar or equivalent to civil unions include civil partnerships, registered partnerships, domestic partnerships, significant relationships, reciprocal beneficiary relationships, common-law marriage, adult interdependent relationships, life partnerships, stable unions, civil solidarity pacts, and so on. The exact level of rights, benefits, obligations, and responsibilities also varies, depending on the laws of a particular country. Some jurisdictions allow same-sex couples to adopt, while others forbid them to do so, or allow adoption only in specified circumstances. In the United States, the term civil