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It was in 2008 that the world鈥檚 biggest physics experiment begins when the Large Hadron Collider is turned on in Switzerland.
At the movies, Batman returns in The Dark Knight, starring Heath Ledger as Joker. Tragically, Ledger dies of an accidental overdose shortly after filming and before the movie is released.

It was the year Conservative MP Boris Johnson challenged incumbent Ken Livingstone in the race to become Mayor of London, and Sir Alex Ferguson becomes the first Scottish manager to win the Champions League twice.

Also in sport, at the Beijing Olympics Scots Katharine Grainger, Ross Edgar and David Florence bring home silver and Chris Hoy becomes the first British Olympian for 100 years to win three gold medals at one Games.

Drivers in Edinburgh go nowhere fast as work begins on the capital city鈥檚 trams project. The consequences of the 2007 US mortgage crisis severely impacts the world鈥檚 financial markets. The collapse of a housing bubble leads to large-scale mortgage defaults
global markets crash and 拢93 billion is wiped off share values at the London Stock Exchange in one day, while in the UK the financial implosion requires the banking sector to be rescued from collapse. It is feared the consequences of the credit crunch will be felt for years to come.

And in the US, Democrat Barack Obama defeats Republican John McCain to become the 44th president of the US.