Unfortunately, writer Len Wein has passed away. One of his main achievements in comics was co-creating the Wolverine.
Wolverine debuted in the pages of Incredible Hulk #181 (with a short cameo in #180).
Len was the scribe of hundreds of comics, including some favorites of mine like Incredible Hulk #210, where the green Goliath battles an axe-wielding powerhouse called Mongu.
Here are a few other comics by Len:
Avengers #133 - The Defenders #12 - Giant-Size Avengers #4 - Invincible Iron Man #73 - Marvel Feature #11 - Marvel Team-Up #13 - Thor Annual #6 - Incredible Hulk #200 - Thor #242
Our thoughts are with his family and friends. May he rest in peace.