In Argentina, where Biro began mass producing his ballpoint pens his birthday – 29 September – is celebrated as Inventor’s Day. Biro died in the country in Buenos Aires in 1985, aged 86. 5 ...

Simple ballpoint pen can write custom LEDs. Washington University in St. Louis. Journal Nature Photonics DOI 10.1038/s41566-023-01266-1 ...

László Bíró was sick of smudging the ink from his fountain pen and so he invented the ballpoint pen in 1938. Show more In 1938, László Bíró, a Hungarian journalist, invented the ballpoint ...