Culled from the days before John Carter wandered Mars wearing nothing more than a loin cloth.
And, apparently, from the days when he only had one arm . . .
I picked up most of the PROJECT: SUPERPOWERS miniseries when they first started up over ten years ago and thought the conceit of pulling together public domain heroes into a new universe worked for a while. Then, from memory, delays in publication led to titles just drifting away and I lost interest.