U-2 pilot Francis Gary Powers is sentenced to ten years imprisonment by the Soviet Union for espionage. 1960 – Sputnik program: Korabl-Sputnik 2: The Soviet Union launches the satellite with the dogs Belka and Strelka, 40 mice, two rats and a variety of plants. 1964 – Syncom 3, the first geostationary communication satellite, is launched. Two months later, it would enable live coverage of the 1964 Summer Olympics. 1965 – Japanese prime minister Eisaku Satō becomes the first post-World War II sitting prime minister to visit Okinawa Prefecture. 1978 – In Iran, the Cinema Rex fire causes more than 400 deaths. 1980 – Saudia Flight 163, a Lockheed L-1011 TriStar burns after making an emergency landing at King Khalid International Airport in Riyadh, Saudi Arabia, killing 301 people. 1980 – Otłoczyn railway accident: In Poland's worst post-war railway accident, 67 people lose their lives and a further 62 are injured. 1981 – Gulf of Sidra Incident: United States F-14A Tomcat fighters intercept and shoot down two Libyan Sukhoi Su-22 fighter jets over the Gulf of Sidra. 1987 – Hungerford massacre: In the United Kingdom, Michael Ryan kills sixteen people with a semi-automatic rifle and then commits suicide. 1989 – Polish president Wojciech Jaruzelski nominates Solidarity activist Tadeusz Mazowiecki to be the first non-communist prime minister in 42 years. 1989 – Several hundred East Germans cross the frontier between Hungary and Austria during the Pan-European Picnic, part of the events that began the process of the Fall of the Berlin Wall. 1991 – Dissolution of the Soviet Union: The August Coup begins when Soviet President Mikhail Gorbachev is placed under house arrest while on holiday in the town of Foros, Ukraine. 1991 – Crown Heights riot begins. 1999 – In Belgrade, Yugoslavia, tens of thousands of Serbians rally to demand the resignation of Federal Republic of Yugoslavia President Slobodan Milošević. 2002 – Khankala Mi-26 crash: A Russian Mil Mi-26 helicopter carrying troops is hit by a Chechen missile outside Grozny, killing 118 soldiers. 2003 – A truck-bomb attack on United Nations headquarters in Iraq kills the agency's top envoy Sérgio Vieira de Mello and 21 other employees. 2003 – Shmuel HaNavi bus bombing: A suicide attack on a bus in Jerusalem, planned by Hamas, kills 23 Israelis, seven of them children. 2004 – Google Inc. has its initial public offering on Nasdaq. 2005 – The first-ever joint military exercise between Russia