Hungarian journalist who invented the first ballpoint pen.
He set out to combine the quick-drying properties of newspaper ink with the ease of use of pens.
His ballpoint pens were first used on military airplanes, where altitude air pressure made previous ink pens impractical.
He and his brothers worked together on the ballpoint pen and moved to Argentina to start selling them.
He and George Mikes, born a few years after Biro, both became well-known Hungarian journalists.