Henri Curiel is murdered in Paris. May 5 – Pete Rose of the Cincinnati Reds gets his 3,000th major league hit. May 8 Norway opens a natural gas field, in the Polar Sea. Reinhold Messner (Italy) and Peter Habeler (Austria) make the first ascent of Mount Everest, without supplemental oxygen. May 9 – In Rome, the corpse of former Italian prime minister Aldo Moro, is found in a red Renault 4. May 12 – In Zaire, rebels occupy the city of Kolwezi, the mining centre of the province of Shaba. The Zairean government asks the U.S., France and Belgium to restore order. May 12–13 – A group of mercenaries, led by Bob Denard, oust Ali Soilih in the Comoros; ten local soldiers are killed. Denard forms a new government. May 15 – Students of the University of Tehran riot in Tabriz; the army stops the riot. May 17 – Charlie Chaplin's coffin is found some from the cemetery from which it was stolen, near Lake Geneva. May 18 Soviet dissident Yuri Orlov is sentenced to 7 years' hard labor, for distributing 'counterrevolutionary material'. Sarajevo is selected to host the 1984 Winter Olympics, and Los Angeles is selected to host the 1984 Summer Olympics. May 18–19 – Belgian and French paratroopers fly to Zaire, to aid the fight against the rebels. May 19–20 – French Foreign Legion paratroopers land in Kolwezi, Zaire, to rescue Europeans in the middle of a civil war. May 20 – Mavis Hutchinson, 53, becomes the first woman to run across the U.S.; her trek took 69 days. May 22 – Exiled leaders Ahmed Abdallah and Muhammad Ahmad return to the Comoros. May 25 First Unabomber attack: A bomb explodes in the security section of Northwestern University, wounding a security guard. In a rematch of the previous season, the Montreal Canadiens again defeat the Boston Bruins, this time four games to two, to win the Stanley Cup. May 26 – In Atlantic City, New Jersey, Resorts International, the first legal casino in the eastern United States, opens. May 28 – Indianapolis 500: Al Unser wins his third race, and the first for car owner Jim Hall. May 29 – Ali Soilih is found dead in the Comoros, allegedly shot when trying to escape. June June 1 – The 1978 FIFA World Cup starts in Argentina. June 10 – Affirmed holds off Alydar to win the Belmont Stakes