Welcome to the 911st installment of Comic Book Legends Revealed, a column where we examine three comic book myths, rumors and legends and confirm or debunk them. This time, in our third legend, we look at how the U.S. Postal Service inadvertently led to the creation of DC's first all-humor comic book series.
Source：https://www.cbr.com/us-postal-code-dc-comics-humor-comics/
