Via the BBC:  Mexican state of Colima allows same-sex civil unions

Colima has become the latest Mexican state to allow same-sex couples to enter into civil unions after a majority of local authorities passed a change in the state’s constitution.

Legalisation on same-sex unions falls under state legislation, and a number of states have divergent rules.

Mexico City and the southern state of Quintana Roo allow gay marriages, while Coahuila allows same-sex civil unions.

A reminder that there are other federal systems (and at least in this case, another one that is, to date, approaching the process of legalizing same-sex unions in a similar fashion).

Plus, here’s a hand-dandy map: