Bolivian Inventor's Day
Bolivian Inventor's Day is held on April 23. This event in the third decade of the month April is annual. 
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Today is celebrated the Bolivian Inventor's Day, remembering the growth and productions that are the result of every day's effort. In Bolivia the "Bolivian Inventor's Day" is celebrated on April 23rd, declared by law n.º 3422 in 2006.
It is celebrated every year on April 23rd as it is the anniversary of the founding of the Bolivian Inventors Association (AIB). On this date it is customary to award prizes in recognition of the most outstanding inventions of the moment by the Ministry of Cultures.
Invention Day in Japan on April 18
World Technology Day for the Future on May 13
Inventors' Day in Hungary on June 13
Inventors' Day in Argentina on September 29
Inventors' Day in Germany, Austria and Switzerland on November 9
International Inventor's Day on November 9
Inventor's Day in Thailand on February 2