(& it was just last week!)
They have a very nice map showing when each U.S. state's law was changed, too. Pretty scary- when I was born, it was legal everywhere, but when H was born there were 19 states where interracial marriage was illegal. Including one of the states where we have lived! Yikes.
I sure hope we can have another day like this in the VERY near future to celebrate marriage rights for same-sex couples, too.