The 365 Crete earthquake occurred at about sunrise on 21 July 365 in the Eastern Mediterranean, with an assumed epicentre near Crete. Geologists today estimate the undersea earthquake to have been a magnitude 8.0 or higher. The Crete earthquake was followed by a tsunami which devastated the southern and eastern coasts of the Mediterranean, particularly Libya, Alexandria and the Nile Delta, killing thousands and hurling ships 3 km (1.9 mi) inland.
On 21 July 1920, partly in response to the killing of Smyth and partly because of competition over jobs due to the high unemployment rate, loyalists marched on the Harland and Wolff shipyards in Belfast and forced over 7,000 Catholic and left-wing Protestant workers from their jobs. Sectarian rioting broke out in response in Belfast and Derry, resulting in about 40 deaths and many Catholics and Protestants being expelled from their homes.
Robin McLaurin Williams was born at St. Luke's Hospital, in Chicago, Illinois on July 21, 1951. His father, Robert Fitzgerald Williams, was a senior executive in Ford Motor Company's Lincoln-Mercury Division. His mother, Laurie McLaurin, was a former model from Jackson, Mississippi. Through her, he was a great-great-grandson of Mississippi senator and governor Anselm J. McLaurin. Williams had two elder half-brothers; paternal half-brother Robert (also known as Todd) and maternal half-brother McLaurin. He had English, Scottish, Welsh, Irish, French, and German ancestry.
At the International Geneva Conference on July 21, 1954, the new socialist French government and the Việt Minh made an agreement which effectively gave the Việt Minh control of North Vietnam above the 17th parallel. The south continued under Bảo Đại. The agreement was denounced by the State of Vietnam and by the United States. A year later, Bảo Đại would be deposed by his prime minister, Ngô Đình Diệm, creating the Republic of Vietnam.
About 19 minutes after Armstrong's first step, Aldrin joined him on the surface, becoming the second human to walk on the Moon. They began their tasks of investigating how easily a person could operate on the lunar surface. Armstrong unveiled a plaque commemorating the flight, and with Aldrin, planted the flag of the United States.
The company was at work on a 32-bit OS, Microsoft Windows NT. It shipped on July 21, 1993, with a new modular kernel and the Win32 application programming interface (API), making porting from 16-bit (MS-DOS-based) Windows easier.
The Rock was named the number one contender for the WWE Undisputed Championship, which he won for a record-setting seventh time at Vengeance, on July 21, by defeating Kurt Angle and then-champion The Undertaker in a Triple Threat match.
On 21 July 2014, it was announced that the Duchess would be making her first solo trip, visiting the island of Malta on 20–21 September 2014, when the island was celebrating its 50th independence anniversary. However, her trip was cancelled, with the Duke taking her place, after the announcement of her second pregnancy in early September.