June 20: "Have A Nice Day" Day, Nice Day Appreciation Day (New Zealand), Just Another Day (Earth)
- A Long Time Ago in a Galaxy Far, Far Away: Darth Vader, The Emperor, Yoda and Luke Skywalker are ordered by the Imperial Senate to take acting lessons.
- 1782 - The U.S. Congress establishes the Great Seal of the United States. It is a California seal named Buster.
- 1801 - Buster is killed in a British terrorist attack on Brooklyn Zoo. Buster's daughter Bibi is named National Seal. Salmon stage protests in major cities.
- 1877 - Alexander Graham Bell installs the world's first telephone service so that he can build his phone sex empire – it would become very successful.
- 1883 - Oscar Wilde completes his play The Duchess of Paduan, which would later be converted into the Star Wars septology.
- 1893 - Lizzie Borden is acquitted for the murders of her father and stepmother, mostly due to the court allowing Borden to brandish an axe at the prosecution, judge, jurors, and small children in the audience.
- 1923 - The United States government interrupts 30 years of nothing happening on June 20 to wish everyone "a nice day."
- 1925 - The "Have A Nice Day" riots finally subside.
- 1926 - Indictments for "Have A Nice Day" riots quashed. Judge says "have a nice day". Riots resume, ending after martial law declared.
- 1927 - Everyone finally has a nice day on Have A Nice Day Riots Day Day. Only minor rioting happens, as people too confused by its name.
- 1959 - A rare hurricane strikes Canada's Gulf of St. Lawrence, destroying vast sasquatch habitat and postponing the National Curling Championships.
- 1963 - The United States and the Soviet Union establish the "red telephone" line so that the leaders of both nations can ask how each others' day was and generally make small talk, replacing the old method of communication between the two, threatening each other with nuclear war.
- 2289 - The British finally land on the moon. They discover that tea cannot be taken in 1/8 gravity, cancelling the mission amid a not so nice day.