The Liverpool badge is based on the city's liver bird, which in the past had been placed inside a shield. In 1992, to commemorate the centennial of the club, a new badge was commissioned, including a representation of the Shankly Gates. The next year twin flames were added at either side, symbolic of the Hillsborough memorial outside Anfield, where an eternal flame burns in memory of those who died in the Hillsborough disaster. In 2012, Warrior Sports' first Liverpool kit removed the shield and gates, returning the badge to what had adorned Liverpool shirts in the 1970s; the flames were moved to the back collar of the shirt, surrounding the number 96 for the number who died at Hillsborough.