I Didn't Know Zat! # 13

1. The first organ to be successfully transplanted in humans is the kidney.

2. MAD Magazine named PacMan "Man of the Year" in September 1982 and to date it is one of very few MAD covers that does not feature Alfred E. Neuman.

3. Christmas was made illegal in Massachusetts in 1659 - and remained so for 22 years.

4. Alaska accounts for about one fifth of all land in continental USA and is also more than twice the size of Texas which is the second largest state.

5. Neil Armstrong stepped on the moon with his left foot first.