ANSWERS:

1. 1982

2. Marlena Evans and Julie Williams. Stefano thought Marlena would make a wonderful wife for Tony and he wanted Julie for himself.

3. Two: Joseph Mascolo owns the role, but Frank Fata took on the part for a few episodes in 1991.

4. The baka; it was believed to hold power for the DiMeras.

5. He believed they could save his life. When put together beneath a laser, the prisms revealed coded instructions on how to operate on Stefano's brain tumor.

6. Legally, only once — to Vivian Alamain. Daphne DiMera was his common-law wife.

7. Strega

8. "It's good to be back."

9. Mrs. Laferty

10. He is the biological father of six: Tony, RenÇe, Megan, Benjy, Lexie and EJ. He also raised Peter and Kristen Blake.

11. Smith Island

12. Queen of the Night

13. While possessed by the devil, Marlena tossed Stefano off her penthouse terrace.

14. While out in a thunderstorm, Stefano was struck by lightning.

15. Kate Roberts; Stefano knew her back when she was a call girl.

16. Vivian and Hope; a chip in Vivian's tooth controlled her moods; the one in Hope's neck transformed her into Princess Gina, an art thief.

17. Knowing he might have fathered the child, Stefano wanted to hide the paternity of Hope's son and raise him a DiMera.

18. Tony explained he had a rare blood disorder and needed all of his father's blood to live. So he killed Stefano to cure himself.

19. Inside an oxygen tent in a hospital in Italy

20. Stefano once explained that he is the seventh son of a seventh son, and as such, according to DiMera legend, he will never die.