Here’s something you don’t see every day, The Avengers versus the Justice League of America. In the early Silver Age, there was excitement about revamped modern versions of Golden Age heroes and all new heroes but readers had become bored by the early 60’s so DC Comics “leases” some characters to Marvel, for a percentage of the profits, in a desperate bid to build comic readership for both. This cover is a nod to the upcoming Independence Day, with the patriotic heroes, Wonder Woman and Captain America, front and center. In part at first, the partnership worked, book sales increased, but then there were third party lawsuits, creators, writers, and artists, that sued over use of likeness. The case went to the Supreme Court, “Avengers V. JLA” Their decision in Part 2 of Avengers Vs. JLA!