On January 8, the American Dialect Society voted singular they as Word of the Year for 2015, with ADS member Ben Zimmer stating "In the past year, new expressions of gender identity have generated a deal of discussion, and singular they has become a particularly significant element of that conversation. While many novel gender-neutral pronouns have been proposed, they has the advantage of already being part of the language." Singular "they" also won in the Most Useful category, beating out other contenders including "mic drop", "microaggression", and "shade" by a wide margin.[1]
In the USA, the states of Oregon and then California began to allow for a nonbinary legal gender, though getting this recognized on identity documents (driver's licenses and passports) is another matter. California began to allow nonbinary driver's licenses.[2]