#278: December 13, 2014
View on Instagram | Twitter#ThisMonthInHistory: Marvel Star Wars #42 was published September 23 yet had a December 1980 date on the top left.
But this first comic book appearance of #BobaFett mirrored the same content in Marvel Comics Super Special #16 (bottom left; dated May 1, 1980), Marvel Illustrated Books: The Empire Strikes Back (top right; dated May 1, 1980), and Marvel Special Edition 2: The Empire Strikes Back (bottom right; dated Spring 1980). To add to the mix, you could include the U.K.'s The Empire Strikes Back Weekly #129 released August 14, 1980.
Oddly enough, despite those copyright dates, those variants contained issues #39-44, which makes us wonder which one really came first after all.
For all Boba Fett comics, see http://bobafett.com/bounty/books/comics/
(Caption updated for further clarity. Vintage comic dates on the top left were often considered back then months to pull the issue off newsstands.)