The Ballpoint Pen
An item which we now take for granted was patented in Argentina on June 10, 1943.
The ballpoint pen was the brainchild of Laszlo Biro, a Hungarian journalist.
More than 15 million ballpoint pens are sold each day.
A ballpoint pen is also called a Biro in the United Kingdom, Australia and New Zealand.
to take for granted: to expect something to be available.
to patent: to give an inventor of a product the right to sell it as his or her own.
brainchild: an original idea.