The New York Times:

Lawmakers voted late Friday to legalize same-sex marriage, making New York the largest state where gay and lesbian couples can wed, and giving the national gay-rights movement new momentum from the state where it was born.

The same-sex marriage bill was approved on a 33 to 29 vote, as four Republican state senators joined 29 Democrats in voting for the bill. The Senate galleries were so packed with supporters and opponents that the fire marshals closed them off. And along the Great Western Staircase, outside the Senate chamber, about 100 demonstrators chanted and waved placards throughout the night — separated by a generation, a phalanx of state troopers and 10 feet of red marble.

... Passage of same-sex marriage here followed a daunting run of defeats in other states where voters barred same-sex marriage by legislative action, constitutional amendment or referendum. Just five states currently permit same-sex marriage: Connecticut, Iowa, Massachusetts, New Hampshire and Vermont, as well as the District of Columbia.

The approval of same-sex marriage represented a reversal of fortune for gay-rights advocates, who just two years ago suffered a humiliating, and unexpected, defeat when a same-sex marriage bill was easily defeated in the Senate, which was then controlled by Democrats.