April 21st is officially World Creativity and Innovation Day & Kindergarten Day.
Climate change activist Greta Thunberg gave a speech in London, leading to protests across the city for four days.
American singer and civil rights activist Nina Simone died at 70 from breast cancer.
American Psychologist Timothy Leary and Star Trek creator Gene Roddenberry were launched into orbit after being cremated.
The FBI arrested an American terrorist, Timothy McVeigh, who was responsible for the Oklahoma City bombing.
George W. Bush and Edward W. Rose shared ownership of the Texas Rangers baseball team.
Fashion store Forever 21 was founded in Los Angeles.
The Apollo 16 lunar module landed on the surface of the Moon.
Brazil founded the city of Brasília and made it the nation's new capital city.
Legend Elvis Presley's 'Heartbreak Hotel' smashed the charts reaching #1.
The Surgeon's Photograph, the most famous photo of the Loch Ness Monster, was published.
While observing a compass needle, scientist Hans Christian Ørsted discovered electromagnetism.
The first vice president of the United States, John Adams, was sworn in.
Romulus and Remus founded the city of Rome.
