A pen (Latin penna, feather) is a writing instrument used to apply ink to a surface, usually paper. There are several different types, including ballpoint, rollerball, fountain, and felt-tip. Historically, reed pens, quill pens, and dip pens were used.
The first patent on a ballpoint pen was issued on October 30, 1888, to John J Loud. In 1938, László BÃró, a Hungarian newspaper editor, with the help of his brother George, a chemist, began to work on designing new types of pens including one with a tiny ball in its tip that was free to turn in a socket. As the pen moved along the paper, the ball rotated, picking up ink from the ink cartridge and leaving it on the paper.
