Same-sex marriage supporters demonstrate in front of the Supreme Court on March 27, 2013 in Washington, DC. The rights of married same-sex couples will come under scrutiny at the US Supreme Court on Wednesday in the second of two landmark cases being considered by the top judicial panel. After the nine justices mulled arguments on a California law that outlawed gay marriage on Tuesday, they will take up a challenge to the legality of the Defense of Marriage Act (DOMA). The 1996 law prevents couples who have tied the knot in nine states -- where same-sex marriage is legal -- from enjoying the same federal rights as heterosexual couples. AFP/Getty Images

With a federal judge declaring a Pennsylvania ban on gay marriage unconstitutional on Tuesday afternoon, every state in the Northeastern corner of the country — Maine, New Hampshire, Massachusetts, Connecticut, Rhode Island, New York, New Jersey, Delaware, Maryland, and now Pennsylvania — has legalized same-sex marriage.

Judge John Jones invoked the 14th Amendment to invalidate a 1996 Pennsylvania law that defined marriage as between a man and a woman. Like many of the other judicial decisions bringing down state marriage bans, this one framed the issue as a matter of civil rights.

Jones wrote:

In future generations the label same-sex marriage will be abandoned, to be replaced simply by marriage. We are better people than what these laws represent, and it is time to discard them into the ash heap of history.

A judge in Oregon issued a similar ruling just the day prior.

Pennsylvania State Attorney General Kathleen Kane, a Democrat, refused to defend the law when it came to the court, but Republican Gov. Tom Corbett appointed a defense. Now, Time reports Corbett is likely to appeal the ruling. Jones is known as a political moderate (who according to the Washington Post was recommended by Rick Santorum), but in the past has sided against a mandate to have intelligent design taught in Pennsylvania schools.

The 19 states (in addition to the District of Columbia) with same-sex marriage now account for 44 percent of the U.S. population, according to the Human Rights Campaign.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.