Invention of ball point pens

A Hungarian journalist named Laszlo Biro invented the first ballpoint pen in 1938. He created a pen with the ink that's exactly the same from those that are from in newspaper, only thicker. He placed a ball inside the pen , as the ball moved along the paper , it get ink and transfers the ink onto the paper. However , the it leaked easily. However , through advances in technology , the ball pen is no longer what it is in 1938. Nowadays, pens are easily purchase and doesn't leak easily.