- 1st team appearance of the X-Men.
- 1st appearance of Cyclops, Jean Grey aka Marvel Girl (later becomes Phoenix), Iceman, Angel, Beast, Professor X and Magneto.
- The concept of Homo Superior, coined by Magneto to describe humans born with special abilities, is introduced in this issue.
- Climbing to number 5 this week and consolidating power from all X-men books is the OG of X-Men keys
- Giant Size X-Men #1 and Hulk #181 have reached insane heights that are many multiples of where they were just a few years ago.
- With the whole market slowly slightly this week (perhaps the stimulus checks finally ran out) collectors have moved back to the granddaddy of X-Men books.
- This week we saw a 4.0 copy change hands at $10,100 (up from a previous high of $7,395).
- And a 0.5 copy hit $2,750 (up from $2,300).
- Interest is building ferociously for X-Men keys in anticipation of their entry into the MCU.
- The run up of GSX 1 and Hulk 181 has made lower and mid grade copies of this book seem cheap in comparison.