Argentina!

Yes, this is the first country in South America to approve gay marriage. It's sweet to see a country with such a high percentage of Catholics vote for equality. The debate was long and both sides held vigil in the cold outside the Congress building. I hear the victory party didn't get started until 4:00 am.

That means 250 million people live in places that permit gay marriage. Here's a chart of that growth. The spike is California which had it, then didn't.