Six years ago today a series of coordinated bombings on Madrid’s commuter rail system killed 191 people and wounded more than 1,800 others. It was the worst terror attack in Europe since the Lockerbie bombing in 1988.

In all, ten bombs exploded on four lines, however three devices failed to go off providing the authorities with with crucial evidence about those responsible. Eventually al Qaeda links were established.

Each year the victims and their families are remembered by both parliament and Spain’s royal family.

Today is different in that exhibitions of items collected at the time from the blast sites and from the spontaneous memorials which emerged across the capital are to be put on show.

One word which was written over and over again on countless cards and tributes was “peace.”

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