http://www.pinknews.co.uk/2010/03/11/australia-is-first-to-recognise-non-specified-gender/
Australia may have made gender history this week, as the New South Wales
government lays claim to being the first in the world to recognise an
individual’s sex as officially “not specified”.
This milestone in the evolution of gender queer came about with the issuing
of a ‘Sex Not Specified’ Recognised Details Certificate in place of a
birth certificate to Norrie (also known as norrie mAy-Welby) a resident