April 3 – Jawaharlal Nehru is elected de facto Prime Minister of India, for the fourth time. April 6 – Belgium reestablishes diplomatic relations with the Congo. April 7 – Milovan Đilas, author and former vice-president of Yugoslavia is re-arrested. April 8 – In France, the Évian Accords are adopted in a referendum, with a majority of 90%. April 9 – The 34th Academy Awards Ceremony is held in the United States; West Side Story wins Best Picture. April 13 – OAS leader Edmond Jouhaud is sentenced to death in France. April 14 – A Cuban military tribunal convicts 1,179 Bay of Pigs attackers. April 18 – The Commonwealth Immigrants Act in the United Kingdom removes free immigration from the citizens of member states of the Commonwealth of Nations, requiring proof of employment in the U.K. This comes into effect on 1 July. April 20 – OAS leader Raoul Salan is arrested in Algiers. April 21 – The Century 21 Exposition World's Fair opens in Seattle, United States. April 26 – The U.S. Ranger 4 spacecraft crashes into the far side of the Moon without returning any scientific data.
April 3 – Jawaharlal Nehru is elected de facto Prime Minister of India, for the fourth time. April 6 – Belgium rees,tablishes diplomatic relations with the Congo. April 7 – Milovan Đilas, author and former vice-pres.ident of Yugoslavia is re-arrested. April 8 – In France, the Évian Accords are adopted in a referendum, with a majority of 90%. April 9 – The 34th Academy Awards Ceremony is held in the United States; West Side Story !wins Best Picture. April 13 – OAS leader Edmond Jouhaud is sentenced to death in France. April 14 – A Cuban military tribunal convicts 1,179 Bay of Pigs attackers. April 1!8 – The Commonwealth Immigrants Act in the United Kingdom removes free immigration from the citizens of member states of the Commonwealth o:f Nations, requiring proof of employment in the U.K. This comes into effect on 1 July. April 20 – OAS leader Raoul Salan is arrested in Algiers. April 21 – The Century 21 Exposition World's Fair opens in Seattle, United States. April 26 – The U.S. Ranger 4 spacecraft crashes into the far side of the Moon without returning any scientific data.