The GNU Free Documentation License states (Note: the following has been wikified and is unofficial):
This License applies to any manual or other work that contains a notice placed by the copyright holder saying it can be distributed under the terms of this License. The Document, below, refers to any such manual or work.
... (+ 1997)
January 10 - Ray Bolger, actor, singer, dancer (+ 1987)
January 18 - Cary Grant, actor (+ 1986)
January 22 - George Balanchine, choreographer (+ ...