The Niagara Accord is a theory that claims that several powerful packs of therianthropes from the northern U.S., who had previously supported Abraham Lincoln's bid for the Presidency, met with him in January of 1860 to formalize their plans to make war upon several vampire nests, that held great sway in the southern U.S., and adamantly supported slavery.
Ancient History has noted that therianthropes ruled many of the Great Dynasties of Ancient Egypt and that many powerful packs blame the vampires that inundated Rome for the end of their rule amongst the Black Sands. Additionally, numerous scholars have spent more than a century exploring a possible hidden agenda amongst therianthropes in the U.S. Civil War.
In her book, An Uncivil War: Pharaohs versus Emperors, Lorna Weist showcases numerous pieces of evidence that demonstrates how the vampire nest of Rome coerced their Emperors into destroying Egypt's reign, mainly because of the power of the therianthropes the egyptian people honored as gods. Further, much of her research paints a portrait of President Lincoln as a man who deeply wanted to throw off the yoke of slavery for every person, but who wanted to the give South and this new Confederate States of America more time, before he sought war. Sadly, according to Weist, the Niagara Accord and the powerful Inhumans who aided his rise, didn't let him.