National Inventor's Day in the USA Date in the current year: February 11, 2024

Te National Inventor's Day is celebrated on February 11, which is the anniversary of the birth of a well-known inventor Thomas Alva Edison. He has patented over 1,000 inventions in the U.S. and about 3,000 in other countries. He was the first person to develop electric light bulb, phonograph, motion picture camera, improved telephone and telegraph.

Inventor's Day is also observed in other countries, but on different days. For example, Germany, Switzerland and Austria observe this day on November 9, on the birthday of Hedy Lamarr, Austrian inventor and Hollywood actress. Argentina observes this day on September 29, the birthday of László József Bíró, who invented the ballpoint pen. The Inventor's Day in Hungary is on June 13, the day when national patent about the synthesized Vitamin C was registered by Albert Szent-Györgyi.

There are no special events on this day, although the enthusiasts try to observe it with appropriate ceremonies and activities.