Syrian civil war: The Syrian Democratic Forces launched a successful military campaign to isolate and eventually capture Raqqa, the Islamic State's capital.
A man committing suicide parked his car on the railway tracks in Ufton Nervet, Berkshire, England, causing a derailment that also killed six people on the train.
Nguyễn Ngọc Thơ was appointed by the junta of General Dương Văn Minh to head the South Vietnamese government, five days after Minh deposed and assassinated President Ngô Đình Diệm.
The B Reactor at the Hanford Site in the U.S. state of Washington began producing plutonium, with the facility later going on to create more for nearly the entire American nuclear arsenal.
As part of their plan to eradicate the Polish intellectual elite, the Gestapo arrested 184 professors, students and employees of the Jagiellonian University (location pictured) in Kraków.
Red Cloud (pictured), a Native American leader of the Oglala Lakota tribe, signed the Treaty of Fort Laramie, ending Red Cloud's War and establishing the Great Sioux Reservation.