Perhaps you'd like to tell Mrs. Schwerin about the tractor you claim to have seen, manufactured by a company that wouldn't be founded for another 15 years and wouldn't make tractors for 50. Or about the U-Boat you claimed is on display in Galveston that was captured by Texas privateers during WW2, or the book you read about it in that doesn't appear to exist in any library anywhere. Or that everyone who was killed by Quantrill's band in the Lawrence raid had it coming. Or about the mechanical cotton pickers that would have ended slavery by 1875, even though they weren't invented until the 1930s. Or that slavery had absolutely nothing to do with the war.
I missed something. Could you please explain what the point is?