In 1930, a Hungarian inventor observed children playing with marbles in a puddle,

In 1930, a Hungarian inventor observed children playing with marbles in a puddle, noticing that the marbles left a trail of water in their wake. That's how the idea came about: why not use a ball-shaped metal nib for writing? This is how the pen was born. ✒️🖋 László József Biro shared his idea with his brother György, a chemist, and together they began researching and experimenting to create a new type of pen based on this concept. Finally, they found the perfect combination: a viscous ink and a tip with a small ball that rotated freely, preventing the ink from drying out and controlling its flow. They presented their invention at the Budapest International Fair in 1931 and patented it in 1938, although they did not market it immediately. With the start of World War II, the brothers emigrated to Argentina, where they founded a company in a garage. Although they were initially unsuccessful due to the high cost of the product, they secured a contract with the British Air Force, whi...