Not every state of the USA had to wait until 2015 for gay marriage to reach them; some of the more progressive states started the party much earlier. One of them was New York, which meant that Neil Patrick Harris and David Burtka could finally start planning their big day.
As it happens, they've been planning it for longer than any of us realized. They 'officially' announced their engagement after the marriage bill passed, but they'd privately been engaged for a full have years, waiting for the law to change before they told everyone their news. They could have gone elsewhere to get married, so they must really have wanted to register in New York! They didn't stay there to actually tie the knot though. We're happy to report that they went on to get married in Italy in 2014 and are now parents to twin children named Harper and Gideon.