On 13 May 1906 the physics department of the University of Paris decided to retain the chair that had been created for her late husband and to offer it to Marie. She accepted it, hoping to create a world-class laboratory as a tribute to her husband Pierre. She was the first woman to become a professor at the University of Paris.
A general election for the Parliament of Southern Ireland was held on 13 May. Sinn Féin won 124 of the new parliament's 128 seats unopposed, but its elected members refused to take their seats.
On May 13, 1936, Luciano's pandering trial began. Dewey prosecuted the case that Carter built against Luciano. He accused Luciano of being part of a massive prostitution ring known as "the Combination". During the trial, Dewey exposed Luciano for lying on the witness stand through direct quizzing and records of telephonecalls; Luciano also had no explanation for why his federal income tax records claimed he made only $22,000 a year, while he was obviously a wealthy man. Dewey ruthlessly pressed Luciano on his long arrest record and his relationships with well-known gangsters such as Masseria, Ciro Terranova, and Louis Buchalter.
After his time as governor general, Soustelle returned to France to organize support for de Gaulle's return to power, while retaining close ties to the army and the pieds-noirs. By early 1958, he had organized a coup d'état, bringing together dissident army officers and pieds-noirs with sympathetic Gaullists. An army junta under General Massu seized power in Algiers on the night of May 13, thereafter known as the May 1958 crisis.
As he entered St. Peter's Square to address an audience on 13 May 1981, Pope John Paul II was shot and critically wounded by Mehmet Ali Ağca, an expert Turkish gunman who was a member of the militant fascist group Grey Wolves.
Iraq repeatedly bombed Iran's main oil export facility on Kharg Island, causing increasingly heavy damage. As a first response to these attacks, Iran attacked a Kuwaiti tanker carrying Iraqi oil near Bahrain on 13 May 1984, as well as a Saudi tanker in Saudi waters on 16 May.
Students began the hunger strike on 13 May, two days before the highly publicized state visit by Soviet leader Mikhail Gorbachev. Knowing that the welcoming ceremony for Gorbachev was scheduled to be held on the Square, student leaders wanted to use the hunger strike there to force the government into meeting their demands. Moreover, the hunger strike gained widespread sympathy from the population at large and earned the student movement the moral high ground that it sought. By the afternoon of 13 May, some 300,000 were gathered at the Square.
On the morning of 13 May, Yan Mingfu, head of the Communist Party's United Front, called an emergency meeting, gathering prominent student leaders and intellectuals, including Liu Xiaobo, Chen Ziming and Wang Juntao. Yan said the government was prepared to hold immediate dialogue with student representatives, but that the Tiananmen welcoming ceremony for Gorbachev would be cancelled whether the students withdraw or not—in effect removing the bargaining power the students thought they possessed. The announcement sent the student leadership into disarray.
A tense atmosphere prevailed on May 13, 1990, when a football game was held at Zagreb in Maksimir Stadium between Zagreb's Dinamo team and Belgrade's Red Star. The game erupted into violence between the Croatian and Serbian fans and with the police.
In 2001, Berlusconi ran again, as leader of the right-wing coalition House of Freedoms (Italian: La Casa delle Libertà), which included the Union of Christian and Centre Democrats, the Lega Nord, the National Alliance and other parties. Berlusconi's success in the May 2001 general election led to him becoming Prime Minister once more, with the coalition receiving 49.6% of the vote for the Chamber of Deputies and 42.5% for the Senate.
The Xbox 360 was officially unveiled on MTV on May 12, 2005, with detailed launch and game information divulged later that month at the Electronic Entertainment Expo (E3). The console sold out completely upon release in all regions except in Japan. Several retail configurations of the core Xbox 360 model were offered over its lifetime, varying the amount of RAM and internal storage offered.
On May 13, 2015, Facebook in association with major news portals launched "Instant Articles" to provide news on the Facebook news feed without leaving the site.