Although the past year has been frustrating to liberals and libertarians on many levels, one exception is in the increasing willingness of governments around the world to recognize same-sex marriage, as Argentina determined to do yesterday. There are now about 250 million people worldwide living in jurisdictions which provide for marriage equity, as this colorful chart will help to demonstrate.
The big spike you see in 2008 is California recognizing gay marriage through the courts, and then un-recognizing it through the passage of Proposition 8. Right now, it's possible to marry your same-sex partner in Buenos Aires, in Mexico City, in Ames, Iowa, and in Pretoria, South Africa, but not in San Francisco. With countries like Argentina and Portugal now recognizing same-sex marriages, however, the global trajectory has returned to its slow-but-steady upward pace.