21st June
1305 – King Wenceslaus II of Bohemia and Poland died.
1377 – King Edward III of England died.
1652 – Inigo Jones died.
1905, Jean-Paul Sartre was born.
1948 – Columbia Records introduced the long-playing record album (LP) in a public demonstration at the Waldorf-Astoria Hotel in New York City.
1964 – Three civil rights workers, Andrew Goodman, James Chaney and Mickey Schwerner, were murdered in Neshoba County, Mississippi, United States, by members of the Ku Klux Klan.
1982 – Princess Diana gave birth to Prince William, heir to the throne.
1985 - Scientists announced that skeletal remains exhumed in Brazil were those of Nazi war criminal Josef Mengele.
2001 – John Lee Hooker died.
2004 – SpaceShipOne became the first privately funded spaceplane to achieve spaceflight.
2009 – Self-rule was introduced in Greenland.