I've pulled this from the Marvel 'Nuff Said section:
As well, around the time of 9/11, Marvel had most of its comics, for the most part, silent issues, with no dialogue or little.
Ironically, the Amazing Spider-Man edition of the gimmick month had to be delayed one month because of 9/11 (Marvel used issue #36 to remember 9/11 and its 'Nuff Said issue occurred in #39)
I can find no evidence Marvel had silent issues to commemorate 9/11. And it would be really weird to do that, and then do it again as a fun gimmick a couple of months later. Coupled with the statement that Amazing's 9/11 issue happened at the same time as 'Nuff Said, and I suspect this is simply a mistaken reference to 'Nuff Said itself. (Remember that cover dates are the date a book gets taken off the shelves, not the date they're published, so "February 2002" is actually December 2001. Although I believe some books shipped later than that just because Marvel wasn't great at scheduling in the 2000s.)
EDIT: There was a one-shot called Moment of Silence to commemorate 9/11, which I've added.
I've pulled this from the Marvel 'Nuff Said section:
I can find no evidence Marvel had silent issues to commemorate 9/11. And it would be really weird to do that, and then do it again as a fun gimmick a couple of months later. Coupled with the statement that Amazing's 9/11 issue happened at the same time as 'Nuff Said, and I suspect this is simply a mistaken reference to 'Nuff Said itself. (Remember that cover dates are the date a book gets taken off the shelves, not the date they're published, so "February 2002" is actually December 2001. Although I believe some books shipped later than that just because Marvel wasn't great at scheduling in the 2000s.)
EDIT: There was a one-shot called Moment of Silence to commemorate 9/11, which I've added.
Edited by DaibhidC