later says that this is her favorite film role. The film is a box-office hit, and is nominated for several Oscars. June 23 Seán Lemass becomes the third Taoiseach of Ireland. Convicted Manhattan Project spy Klaus Fuchs is released after only nine years in a British prison and allowed to emigrate to Dresden, East Germany where he resumes a scientific career. June 26 Elizabeth II (as Queen of Canada) and United States President Dwight Eisenhower open the Saint Lawrence Seaway. June 30 – Twenty-one students are killed and more than a hundred injured when an American North American F-100 Super Sabre jet crashes into Miamori Elementary School on the island of Okinawa. The pilot ejected before the plane struck the school. July July 2 – Prince Albert of Belgium marries Italian Donna Paola Ruffo di Calabria. July 4 – With the admission of Alaska as the 49th U.S. state earlier in the year, the 49-star flag of the United States debuts in Philadelphia. July 7 – At 14:28 UT Venus occults the star Regulus. The rare event (which will next occur on October 1, 2044) is used to determine the diameter of Venus and the structure of Venus' atmosphere. July 9 – Wing Commander Michael Beetham flying a Royal Air Force Vickers Valiant sets a record of 11 hours 27 minutes for a non-stop London-Cape Town flight. July 14 – Groups of Kurdish and communist militias rebel in Kirkuk, Iraq against the central government. July 17 – The first skull of Australopithecus is discovered by Louis Leakey and his wife Mary in the Olduvai Gorge of Tanzania. July 22 – A Kumamoto University medical research group studying Minamata disease concludes that it is caused by mercury. July 24 – t the opening of the American National Exhibition in Moscow, United States Vice President Richard Nixon and USSR Premier Nikita Khrushchev engage in the "Kitchen Debate". July 25 – The SR.N1 hovercraft crosses the English Channel from Calais to Dover in just over 2 hours, on the 50th anniversary of Louis Blériot's first crossing by heavier-than-air craft. August August 4 – Martial law is declared in Laos. August 7 Explorer program: The United States launches Explorer 6 from the Atlantic Missile Range in Cape Canaveral, Florida. United States: The Roseburg, Oregon blast kills 14 and causes $12 million worth of damage. August 8 – A flood in Taiwan kills 2,000. August