Lesbian, gay, bisexual and transgender (LGBT) rights in Portugal improved substantially in the 2000s and 2010s and are now among the best in the world. After a long period of oppression during the "Estado Novo", Portuguese society has become increasingly accepting of homosexuality, which was decriminalized in 1982, eight years after the Carnation Revolution. Portugal has wide-ranging anti-discrimination laws and is one of the few countries in the world to contain a ban on discrimination based on sexual orientation in its Constitution. On 5 June 2010, the state became the eighth in the world to recognize same-sex marriage. On 1 March 2011, a gender identity law, said to be one of the most advanced in the world, was passed to simplify the process of sex and name change for transgender people. Same-sex couples have been permitted to adopt since 1 March 2016.