At 6pm tonight, 5th February 2009 Sky News will be 20 years old.

Visitors to skynews.com/20 will be able to explore a video history of the biggest news stories of the last 20 years.

The microsite will have news clips, in-depth reports from Sky News specialists and a comment section. Visitors can post their thoughts about where they were when they heard a particular news story or how it has affected them or their families – for example, the attacks on the twin towers, the death of Princess Diana, the plight of the Thames Whale.