The Dutch went first in 2001; who has same-sex marriage now?

Peter Wittebrood-Lemke, from left, Frank Wittebrood, Ton Jansen, Louis Rogmans, Helene Faasen and Anne-Marie Thus cut the wedding cake after exchanging vows at Amsterdam's City Hall early Sunday, April 1, 2001. (Photo: Peter Dejong/AP)

Twenty years ago, just after the stroke of midnight on April 1, the mayor of Amsterdam married four couples in City Hall as the Netherlands became the first country in the world with legalized same-sex marriages.

“There are two reasons to rejoice,″…