(NEWSER) – Illinois Gov. Pat Quinn invoked Abraham Lincoln as he signed a marriage equality bill into law, making the state the 16th to legalize gay marriage—and the third in the space of a month, after Hawaii and New Jersey. Lincoln "said our nation was conceived in liberty," the governor said. "And that’s really what we’re celebrating today, it’s a triumph of democracy, a triumph of government of the people—that we believe in liberty and equality." Politicians and thousands of supporters cheered as the bill was signed and Kool and the Gang’s "Celebration" was played, the Chicago Sun-Times reports. The bill will allow same-sex marriages to start taking place next June.

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