Four young British Islamic terrorists caused four explosions in London's public transport, leaving 56 dead and 700 wounded.
8:50 am: explosion in the subway at Moorgate / Aldgate East / Liverpool Street.
8:50 am: explosion in the subway at Russell Square / King's Cross.8:51 am: explosion in the subway at Edgware Road.
9:47 am: explosion on the top floor of a double decker bus at Tavistock Square.
These suicide bombings came the day after the London Olympic nomination for the 2012 Summer Olympics and the opening day of the 31st G8 summit in Scotland.