Sophia is a social humanoid robot developed by Hong Kong-based company Hanson Robotics. Sophia was activated on April 19, 2015 and made her first public appearance at South by Southwest Festival (SXSW) in mid-March 2016 in Austin, Texas, United States. She is able to display more than 50 facial expressions. In October 2017, Sophia became a Saudi Arabian citizen, the first robot to receive citizenship of any country.