A sick man tells of a walk he took in November of 1845 only to find himself in a pitched battle in 1780 Calcutta, but Dr. Templeton, who listens to the story, already knows how it turns out.
Busied in this, I walked on for several hours, during which the mist deepened around me to so great an extent that at length I was reduced to an absolute groping of the way. And now an indescribable uneasiness possessed me— 
Edgar Allan Poe, Master Traveller
Poe’s creativity and innovation was stronger in his horror stories than his ventures into time travel, but even so, he deserves his Master Traveller Citation for the first instance of a time traveler visiting—and affecting!—a historical event. Yet the effect on the event is not a change: Indeed, he caused it to happen in exactly the way that history recorded, resulting in the first of a long line of stories time-travel stories in a single-stream universe in which a traveler may go to the past and do various actions, but only if he did in fact do them all along.