*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. 

 

 

 

 

 

 

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