21 people were killed and 182 were injured in a series of bomb attacks in 1974, thought to be carried out by the Provisional IRA. The bombings were the worst terror attacks in Great Britain up until the 2005 London bombings and consisted of bombs being planted in two pubs in Central Birmingham. Six men were convicted, who became known later as the Birmingham Six and sentenced to life imprisonment, who were acquitted after 16 years by the Court of Appeal. The convictions are now considered one of the worst British miscarriages of justice in recent times. The true perpetrators of the attacks are yet to be arrested.