• 2005 – A series of four explosions occurs on London's transport system killing 56 people including four alleged suicide bombers and injuring over 700 others.

• 7 July 2005 London bombings
  Emergency services at Russell Square tube station on 7 July 2005
  Location	Aboard London Underground trains and a bus in central London
  Date	7 July 2005 08:50 – 09:47 BST (UTC+01:00)
  Target	General public
  Attack type	Mass murder; suicide attack; terrorism
  Deaths	52 victims + 4 suicide bombers
  Non-fatal injuries	Approximately 700
  Perpetrators	Hasib Hussain Mohammad Sidique Khan Germaine Lindsay Shehzad Tanweer

  The 7 July 2005 London bombings (often referred to as7/7) were a series of coordinatedsuicide attacks in central London, which targeted civilians using thepublic transport system during the morning rush hour.

  On the morning of Thursday, 7 July 2005, four British Islamistmen detonated four bombs—three in quick succession aboardLondon Underground trains across the city and, later, a fourth on a double-decker bus inTavistock Square. As well as the four bombers, 52 civilians were killed and over 700 more were injured in the attacks, the United Kingdom's worst terrorist incident since the 1988 Lockerbie bombing as well as the country's first ever suicide attack.

  The explosions were caused by homemade organic peroxide–based devices packed intorucksacks. The bombings were followed two weeks later by a series of attempted attackswhich failed to cause injury or damage.

  The 7 July attacks occurred one day after London had won its bid to host the 2012 Olympic Games, which had highlighted the city's multicultural reputation. 

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