On this day in 1988, Drs. Philip Leder and Timothy Stewart were issued the first patent for a new animal life form: a genetically altered mouse.

Did you know that:

• George C. Blickensderfer was granted a patent for a portable typewriter on this day in 1892
• James Hillman, founder of archetypal psychology, was born this day in 1926
• Saoirse Ronan is an American-born Irish actress born on this day in 1994