Tragedy hits the Welsh village of Aberfan as a coal slag tip engulfs a school burying at least 130 people and injuring many more.
1952: Kenyatta arrested in security raid The President of the Kenya African Union, Jomo Kenyatta, is arrested following the declaration of a state of emergency in the British colony of Kenya.
1982: Sinn Fein triumph in elections Gerry Adams and Martin McGuinness make history as they become the first members of Sinn Fein to be elected to the Ulster Assembly.
1975: Herrema kidnappers under siege Armed police are surrounding a house near Dublin where kidnapped businessman Tiede Herrema is being held captive.