Uncanny X-Men - Chris Claremont IV.

X-Men v1 #117-121.

While Wolverine was already starting to drift into focus in the Savage Land story, he became much more prominent in the final chapters of the X-Men's tour around the world. We started finding out more and more about him – including, at long last, his real name. (Which wasn't actually his real name at all, of course, but let's not split hairs.) Buuuut this information was presented to us in tantalizing bits and pieces. In contrast, Storm's we learned of Storm's entire history in the span of a couple of pages. Wolverine is an enigma, a man whose past is shrouded in mystery... even to himself, as it turned out. This would become crucial to his character. Claremont had a plan for his backstory, but it ultimately didn't work out, so for the longest time, he literally didn't have a past.