Here is a write up on the ceremony remembering the 96 people who died at the 1989 FA Cup Semi-Finals in a crowd crush.
HIllsborough is one of the greatest tragedies in world football, and ranks with the Munich Air Disaster, Heysel in memory.
However, it is important to note that even though Hillsborough changed the face and functioning of English football (getting rid of terraces at the top levels of the game), there are still incidents around the world where football fans die at matches. Most recently in a World Cup qualifier between Malawi and Ivory Coast saw 19 people killed and 130 injured in an incident at the stadium.
Each death is a tragedy and if memorializing Hillsborough will help us learn teh lesson about fan safety at a football match.