Meet the first-ever robot citizen - a humanoid named Sophia that once said it would 'destroy humans'

Sophia the robot might not have a heart or brain, but it does have Saudi Arabian citizenship.

As of October 25, Sophia is the first robot in history to be a full citizen of a country.

Sophia was developed by Hanson Robotics, led by AI developer David Hanson. It spoke at this year's Future Investment Initiative, held in the Saudi Arabian capital of Riyadh.

Sophia once said it would "destroy humans," but this time around the robot spoke about its desire to live peaceably among humans.

Here's what the robot is all about.