It was a big year for same-sex marriage in the US: 18 states granted gay and lesbian couples the right to marry.
At the beginning of 2013, 17 states and the District of Columbia allowed same-sex marriages. Today, 35 states and DC have marriage equality.
Most of the change came as a result of sweeping court decisions throughout the past year. The decisions culminated at the Supreme Court when it allowed pro-marriage equality rulings from five states to stand — leading to a flood of lower court rulings and interpretations from state lawmakers that paved the way toward same-sex marriages in 16 more states.