On This Day - What happened 20 September

On September 20, 1904, Wilbur flew the first complete circle in history by a manned heavier-than-air powered machine, covering 4,080 feet (1,244 m) in about a minute and a half.

In the autumn of 1920 he and his pregnant wife returned to his homeland, first by train to Narva, by ship to Stettin, then by train to Vienna, where they arrived on 20 September.

On September 20 1929, the Liberal Alliance launched their candidates for the presidential elections: Getulio Vargas as candidate for President and João Pessoa Cavalcanti de Albuquerque as candidate for Vice President.

The London Stock Exchange crashes after the collapse of Hatry Group on charges of fraud and forgery. £24 million in value is wiped out. The collapse shakes the confidence of American investors in the security of overseas investments.

The Moscow Armistice was signed between Finland on one side and the Soviet Union and United Kingdom on the other side on 19 September 1944, ending the Continuation War.

The Law of September 20, 1947, granted French citizenship to all Algerian subjects, who were not required to renounce their personal status.

The crew assignments for Gemini 8 were announced on September 20, 1965. Under the normal rotation system, the backup crew for one mission became the prime crew for the third mission after, but Slayton designated David Scott as the pilot of Gemini 8. Scott was the first member of the third group of astronauts, whose selection was announced on October 18, 1963, to receive a prime crew assignment.

Hepburn appeared in Two for the Road, a non-linear and innovative British dramedy that traces the course of a couple's troubled marriage. Director Stanley Donen said that Hepburn was more free and happy than he had ever seen her, and he credited that to co-star Albert Finney.

Lennon announced his departure to the rest of the group on 20 September, but agreed to withhold a public announcement to avoid undermining sales of the forthcoming album.

The Macintosh Portable is a portable computer designed, manufactured and sold by Apple Computer, Inc. from September 1989 to October 1991.

On 20 September 1991, the JNA transferred troops to the front at Vukovar via the Višegrad region of northeastern Bosnia. In response, local Croats and Bosniaks set up barricades and machine-gun posts. They halted a column of 60 JNA tanks but were dispersed by force the following day. More than 1,000 people had to flee the area. This action, nearly seven months before the start of the Bosnian War, caused the first casualties of the Yugoslav Wars in Bosnia.

As a result of overwhelming diplomatic pressure from the United Nations, promoted by Portugal since the late 1970s and also by the United States and Australia in the 1990s, a UN-sanctioned, Australian-led international peace-keeping force (INTERFET) entered East Timor, and Gusmão was finally released. Upon his return to his native East Timor, he began a campaign of reconciliation and rebuilding.

The Rock 'n' Sock Connection won back from Undertaker and Big Show on the September 20, 1999 episode of Raw is War.

On September 20, 2001, President George W. Bush addressed the nation and a joint session of the United States Congress regarding the events of September 11 and the subsequent nine days of rescue and recovery efforts, and described his intended response to the attacks. New York City mayor Rudy Giuliani's highly visible role won him high praise in New York and nationally.

Ardern stood again in Auckland Central at the 2014 general election. She again finished second though increased her own vote and reduced Kaye's majority from 717 to 600. Ranked 5th on Labour's list Ardern was still returned to Parliament where she became Shadow spokesperson for Justice, Children, Small Business, and Arts & Culture under new leader Andrew Little.

In 2016, with the release of macOS 10.12 Sierra, the name was changed from OS X to macOS to streamline it with the branding of Apple's other primary operating systems: iOS, watchOS, and tvOS. macOS 10.12 Sierra's main features are the introduction of Siri to macOS, Optimized Storage, improvements to included applications, and greater integration with Apple's iPhone and Apple Watch. The Apple File System (APFS) was announced at the Apple Worldwide Developers Conference in 2016 as a replacement for HFS+, a highly criticized file system.

OnePlus 3 had a third limited edition color, Soft Gold was released on 7 August 2017. Another special edition color was launched on 20 September 2017, in collaboration with Castelbajac.

Pierre Verdier died at the age of 79.

The German composer Benedict Schultheiss was born in Nuremberg, Germany.

Bonnie Prince Charlie ran away from Scotland.