And not the only one - and I don't mean the Marvel version, either. In the late '40's and '50's, in France, there was a Wonderman, actually described as, "the superman in the velvet mask". He had a glider cape and enhanced strength, plus some other powers that seemed to come and go (at least, that's what happens in the 5 or 6 stories I have). Here in the U.K. we had a Wonderman, who, this time, was Captain John Justice, a wealthy good-for-nothing in his public life. He seemed to have super strength; invulnerability; superhuman atomic powers; flight - well, you name it, he had it! His super suit had a big W on the chest. This was in 1948 and I'd have to do some more research to find out how long he lasted.