Co-operation. March 24 – OAS leader Edmond Jouhaud is arrested in Oran. March 26 – France shortens the term for military service from 26 months to 18. April 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; 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 Immigration Bill in the United Kingdom removes free immigration from the citizens of member states of the Commonwealth of Nations. 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 Ranger 4 spacecraft crashes into the Moon. May May 1 Norwich City F.C. wins the English Football League Cup, beating Rochdale in the final. Dayton Hudson Corporation opens the first of its Target discount stores, in Roseville, Minnesota. May 2 An OAS bomb explodes in Algeria; this and other attacks kill 110 and injure 147. S.L. Benfica beats FC Barcelona 5–3 at the Olympic Stadium (Amsterdam), to win the 1961–62 European Cup in association football. May 3 – Mikawashima train crash: 160 die in a triple-train disaster near Tokyo. May 5 – Twelve East Germans escape via a tunnel, under the Berlin Wall. May 6 Antonio Segni is elected President of the Italian Republic. A test of a W47 warhead fired from a Polaris missile, the only time a nuclear missile has been test fired with its warhead detonated, occurs near Palmyra Atoll south of Hawaii. May 14 Juan Carlos of Spain marries the Greek Princess Sophia in Athens. Milovan Đilas is given a further sentence in Yugoslavia, for publishing Conversations with Stalin. May 22 – Continental Airlines Flight 11 crashes near Unionville, Missouri, after the in-flight detonation of a bomb near the rear lavatory; all 45 passengers and crew aboard are killed. May 23 Drilling for the new Montreal Subway commences. Raoul Salan, founder of the French