Spidey meets Doctor Strange for the first time! It’s basically like an issue of Marvel Team-Up from the 1970s—the heroes meet and fight a villain together. Not much else to it, but it’s a good comic, largely because it combines Ditko’s best character to draw (Spidey) with his most atmospheric work (Strange).
Creators: Steve Ditko (Plot, art); Stan Lee (Script).
For the complete history of the MU, year by year, go here.