The 2025 papal conclave elects Cardinal Robert Francis Prevost, taking the name Leo XIV as the 267th Pope of the Catholic Church.
A car bomb explodes in front of a school in Kabul, capital city of Afghanistan killing at least 55 people and wounding over 150.
British 17-year-old Isabelle Holdaway is reported to be the first patient ever to receive a genetically modified phage therapy to treat a drug-resistant infection.
China Southern Airlines Flight 3456 crashes on approach into Bao'an International Airport, killing 35 people.
A fire at Illinois Bell's Hinsdale Central Office triggers an extended 1AESS network outage once considered to be the "worst telecommunications disaster in US telephone industry history".
The SAS kills eight Provisional Irish Republican Army volunteers and a civilian during an ambush in Loughgall, Northern Ireland.
Corporal Denis Lortie enters the Quebec National Assembly and opens fire, killing three people and wounding 13. René Jalbert, Sergeant-at-Arms of the Assembly, succeeds in calming him, for which he will later receive the Cross of Valour.
The Soviet Union announces a boycott upon the Summer Olympics at Los Angeles, later joined by 14 other countries.
The Thames Barrier is officially opened, preventing the floodplain of most of Greater London from being flooded except under extreme circumstances.
The World Health Organization confirms the eradication of smallpox.
The first ascent of Mount Everest without supplemental oxygen, by Reinhold Messner and Peter Habeler.
The rollercoaster The New Revolution, the first steel coaster with a vertical loop, opens at Six Flags Magic Mountain.
A 71-day standoff between federal authorities and the American Indian Movement members occupying the Pine Ridge Reservation at Wounded Knee, South Dakota ends with the surrender of the militants.
Vietnam War: U.S. President Richard Nixon announces his order to place naval mines in major North Vietnamese ports in order to stem the flow of weapons and other goods to that nation.
The Beatles release their 12th and final studio album Let It Be.
The Philippine province of Davao is split into three: Davao del Norte, Davao del Sur, and Davao Oriental.
South Vietnamese soldiers under the Roman Catholic President Ngo Dinh Diem open fire on Buddhists defying a ban on the flying of the Buddhist flag on Vesak, killing nine and sparking the Buddhist crisis.
South Vietnamese President Ngo Dinh Diem began a state visit to the United States, his regime's main sponsor.
The Tollund Man was discovered in a peat bog near Silkeborg, Denmark.
Estonian schoolgirls Aili Jõgi and Ageeda Paavel blow up the Soviet memorial which preceded the Bronze Soldier of Tallinn.