The following is an excerpt from the AFP. For the full article, follow the link at the end of the page.
Buenos Aires, known for its active if low-key gay movement, became the region's first city to approve civil unions for gay couples in 2002. It was followed by Villa Carlos Paz in the north and the southern province of Rio Negro.
Those civil unions grant gay couples some, but not all, the rights enjoyed by heterosexual married couples.
Friday's ruling by Judge Gabriela Seijas ordered the civil registry to make official the marriage of Alejandro Freyre, 39, and Jose Maria Di Bello, 41, who had been denied their request because they were both men.
It could increase pressure for lawmakers to take up a stalled gay marriage bill in Congress.
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In the rest of Latin America, Mexico City, the Mexican state of Coahuila and the Brazilian state of Rio Grande do Sul also allow civil unions for same-sex couples.
Uruguay became the first country in the region in late 2007 to legalize civil unions for gays. In January 2009, the Colombian Constitutional Court recognized a series of rights for homosexual couples, including social welfare rights.
Meanwhile, CNN reported last Friday that:
The government of Argentina's capital will not appeal a court decision this week that legalizes same-sex marriage, Buenos Aires Mayor Mauricio Macri said Friday.
The court ruled that two articles in the city's civil code that say only people of different sexes can get married are illegal. The court decision applies only to Buenos Aires. Same-sex unions in most of the rest of Argentina remain illegal.