The Barbenheimer phenomenon begins as two major motion pictures, Greta Gerwig's fantasy comedy Barbie and Christopher Nolan's epic biographical thriller Oppenheimer, are released in theaters on the same day and audiences, instead of creating a rivalry between the extremely dissimilar films, instead attend and praise both as an informal, surreal double feature.

Yuen Long attack or "721 incident" in Hong Kong. Triad members indiscriminately beat civilians returning from protests while police failed to take action.

Erden Eruç completes the first solo human-powered circumnavigation of the world.

Four attempted bomb attacks by Islamist extremists disrupt part of London's public transport system.

After 11 years of construction, the Aswan High Dam in Egypt is completed.

Apollo program: At 02:56 UTC, astronaut Neil Armstrong becomes the first person to walk on the Moon, followed 19 minutes later by Edwin "Buzz" Aldrin.