Jupiter Hammon

When I was at Hartford in Connecticut, where I lived during the war, I published several pieces which were well received, not only by those of my own colour, but by a number of the white people, who thought they might do good among their servants.

But if, on the other hand, we should be justified in rejecting it, if there testified on oath, then, supposing our rules of evidence to be sound, we may be excused if we hesitate elsewhere to give it credence.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.