gives his I Have a Dream speech. 1964 – The Philadelphia race riot begins. 1968 – Police and protesters clash during 1968 Democratic National Convention protests as protesters chant "The whole world is watching". 1973 – Norrmalmstorg robbery: Stockholm police secure the surrenders of hostage-takers Jan-Erik Olsson and Clark Olofsson, defusing the Norrmalmstorg hostage crisis. The behaviours of the hostages later give rise to the term Stockholm syndrome. 1988 – Ramstein air show disaster: Three aircraft of the Frecce Tricolori demonstration team collide and the wreckage falls into the crowd. Seventy-five are killed and 346 seriously injured. 1990 – Gulf War: Iraq declares Kuwait to be its newest province. 1990 – An F5 tornado strikes the Illinois cities of Plainfield and Joliet, killing 29 people. 1993 – NASA's Galileo probe performs a flyby of the asteroid 243 Ida. Astronomers later discover a moon, the first known asteroid moon, in pictures from the flyby and name it Dactyl. 1993 – Singaporean presidential election: Former Deputy Prime Minister Ong Teng Cheong is elected President of Singapore. Although it is the first presidential election to be determined by popular vote, the allowed candidates consist only of Ong and a reluctant whom the government had asked to run to confer upon the election the semblance of an opposition. 1993 – The autonomous Croatian Community of Herzeg-Bosnia in Bosnia and Herzegovina was transformed into the Croatian Republic of Herzeg-Bosnia. 1996 – Chicago Seven defendant David Dellinger, antiwar activist Bradford Lyttle, Civil Rights Movement historian Randy Kryn, and eight others are arrested by the Federal Protective Service while protesting in a demonstration at the Kluczynski Federal Building in downtown Chicago during that year's Democratic National Convention. 1998 – Pakistan's National Assembly passes a constitutional amendment to make the "Qur'an and Sunnah" the "supreme law" but the bill is defeated in the Senate. 1998 – Second Congo War: Loyalist troops backed by Angolan and Zimbabwean forces repulse the RCD and Rwandan offensive on Kinshasa. 1999 – The Russian space mission Soyuz TM-29 reaches completion, ending nearly 10 years of continuous occupation on the space station Mir as it approaches the end of its life. 2003 – In "one of the most complicated and bizarre crimes in the annals of the FBI", Brian Wells dies after becoming involved in a complex plot involving a bank robbery, a scavenger hunt, and a homemade explosive device. 2016 – The first