Where were all the Black folks in Krypton?

Newsarama.com has uncovered an interesting place in Superman's world, Vathlo Island. I never heard of the place and neither have most people. The reason may be because that's where are all the Black People lived.

Many years ago, there was a map of Krypton. If you look here you will see what I'm talking about.
Vathlo Island, Home of a Highly Advanced Black Race. Isn't that something? For a long time Kryptonians were all white. In wasn't until the mid-70s diversity hit the dead planet.

“A lack of ethnicity was an error of omission, and I'm not sure given the time that it's fair to call that ‘racist,'" said Mark Waid, Boom! Studios Editor-in-Chief, occasional DC Comics writer. “Siegel and all those who followed in crafting the Superman legend were, indeed, simply following the traditions of the Golden Age of Science Fiction, when one world always equaled one culture, maybe two if they were at war because the plot demanded it. Remember, as absurd as this sounds in an America finally enlightened enough to elect a black man as President, the Civil Rights Act wasn't passed until 1964. The gradual recognition of all races and ethnicities across all of pop culture, comics included, really didn't start to blossom until the late 1960s. Yes, Superman was weirdly late to that party - the first African-American even in a Superman story, and it's from the summer of 1970, believe it or not! - but again, and not to make excuses, that delay was just creative inertia in action.”

Fascinating. I have to get this comic. I understand the sign of the times back then. When Black Power got big in the 70s of course it was time for a change. Look at Wonder Woman, around that time, it was revealed she had a Black sister, named Nubia. Then Storm, Luke Cage, and others came on the scene.

Makes you wonder what other diversity secrets are luring around the comic book world.