James McGrath picks up our previous conversation. The link is here. He mentions the commonly held notion that Shelley's Frankenstein is the first sci-fi. Helpfully, he blurs the distinction between modern sci-fi and earlier incarnations.
I have long considered Frankenstein to be the first modern superhero story. While most films depict the monster as sub-human, the book clearly suggests the possibility that he is superhuman. Faster, smarter, stronger, and with an equal capacity for desire and pain. Definitely not "sub-human".
At this point, I should probably remind my readers of number 5 on this list. It was only a matter of time.