On June 4, the Korean king, Gojong, requested aid from the Qing government in suppressing the Donghak Rebellion. Although the rebellion was not as serious as it initially seemed and hence Qing reinforcements were not necessary, the Qing government still sent the General Yuan Shikai as its plenipotentiary to lead 2,800 troops to Korea.
Prime Minister Josip Broz Tito met with the president of the Bishops' Conference of Yugoslavia, Aloysius Stepinac on 4 June 1945, two days after his release from imprisonment. The two could not reach an agreement on the state of the Catholic Church. Under Stepinac's leadership, the bishops' conference released a letter condemning alleged Partisan war crimes in September 1945.
Armstrong visited the Seattle World's Fair in May 1962, and attended a conference there on space exploration that was co-sponsored by NASA. After he returned from Seattle on June 4, he applied to become an astronaut.
On the morning of 4 June, police forcibly broke up the student demonstration taking place in Chengdu's main square. The resulting violence killed eight people, and injured hundreds.
The suppression on June 4 marked the end of a period of relative press freedom in China and media workers—both foreign and domestic—faced heightened restrictions and punishment in the aftermath of the crackdown. State media reports in the immediate aftermath were sympathetic to the students. As a result, those responsible were all later removed from their posts.
On June 4, 2013, DC unveiled two new digital comic innovations to enhance interactivity: DC2 and DC2 Multiverse. DC2 layers dynamic artwork onto digital comic panels, adding a new level of dimension to digital storytelling, while DC2 Multiverse allows readers to determine a specific story outcome by selecting individual characters, storylines and plot developments while reading the comic, meaning one digital comic has multiple outcomes. DC2 will first appear in the upcoming digital-first title, Batman '66, based on the 1960s television series and DC2 Multiverse will first appear in Batman: Arkham Origins, a digital-first title based on the video game of the same name.