27 February 2015 :: If somebody dosen’t fit into any of the 58 gender identity options offered by Facebook, then they can opt for new gender option [ 59th ], which is a Fill in the blank.
The new gender option is available to everyone who uses Facebook in the United States.
People can also choose what pronoun they prefer: he/his, she/her or they/their. And they can control the audience who sees their gender.