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Events on 30 June

Events

• Apple Music with Internet radio station Beats 1 launched [2015]
• First leap second added to UTC [1972]
• First Chevrolet Corvette manufactured [1953]
• World’s first emergency number – 999 [1937]
• Tunguska event occurs [1908]
• Einstein introduces special theory of relativity (STR) [1905]
• Oxford evolution debate is held [1860]

Important Celebrations and Functions

• Asteroid Day

Birthdays

• Lynne Jolitz [1961]
  Co-developer of the 386BSD operating system with her husband, William
• Ed Yost [1919]
  Inventor of the modern hot air balloon

Death Anniversaries

• Robert Dewar [2015]
  Developer of software languages and compilers
• Leonard Starr [2015]
  American cartoonist, comic book artist and creator of 'On Stage'
• Lee de Forest [1961]
  Inventor of the three-electrode vacuum-tube (Audion)
• Elsa Beskow [1953]
  Swedish author and illustrator
• John William Strutt 3rd Baron Rayleigh [1919]
  Nobel laureate known for Rayleigh scattering and for discovering argon
• William Oughtred [1660]
  Inventor of the slide rule