British lawmakers voted in favor of controversial legislation allowing gay marriage on Tuesday, February 5, despite fierce opposition from members of Prime Minister David Cameron's own party. Voting 400-175, the vote puts Britain on track to join the ten countries that allow same-sex couples to marry. But to become a law it still needs to clear votes at the House of Commons and the House of Lords. Cameron had allowed lawmakers a free vote on the issue, meaning they were not directed by party managers. Speaking before the vote, Cameron said: "Today is an important day. I am a strong believer in marriage, it helps people commit to each other, and I think it is right that gay people should be able to get married too.