Same-sex marriage (also known as gay marriage) is marriage between two persons of the same biological sex and/or gender identity. On June 27, 2013,  U.S. Supreme Court delivered a landmark victory for gay rights . According to recent report, same-sex couples will also be able to get married in England and Wales after new measures became law. More and more countries start to do sonething for gay marriage.(Source:Xinhuanet.com)