*1904-:Vacuum Tube concerned THERMIONIC VALUE has been introduced by the English engineer, John Ambrose Fleming.
*1914-:The Federal Reserve Bank has been opened at United States.
*1945-:UNESCO(United Nations Educational Scientific and Cultural Organization) has been founded.
*1540-:Birth anniversary of Sweden’s princess CECILLIA.
*1802-:Death of Andre Michaux, the French botanist and explorer.
