On this day in 1900, during the Boxer Rebellion, China formally declared war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
On this day in 1948, Columbia Records introduced the long-playing record album in a public demonstration at the Waldorf-Astoria Hotel in New York, New York.
On this day in 2004, SpaceShipOne became the first privately funded space plane to achieve space flight.
And on this day in 2009, Greenland assumed self-rule.