This is a very nice timeline, there was a lot of events that I didn't predict, like Napolean taking Jerusalem and Ireland or the earlier American civil war. Your descriptions of these already said events are very detailed, and it feels like how a real-life historian would cover them, which I feel really helps the overall aesthetic appeal of this timeline. This is definitely something that I'll want to watch, and I hungrily await for more of this, the only things I don't like about this timeline is that the words are very small and that there aren't more chapters of it.
But I do have a question about this timeline, how far do you want to keep this timeline going, like what date do you think you'll end it at, is this going to end in the 18th, 19th, or even 20th century?
Isn't America still in the "secret" defensive pact with Napolean? If it is, that would mean that the American civil war might become apart of the war of the fifth coalition, with Britain sending supplies to the Republicans, like what almost happened in our timeline's version of the American civil war. Also, Thomas could affectionally be called by future Americans as "Thomas the conciliator", since he is about to conciliate Canada and the south back into the "fold", is it still called the union in this timeline? Also, what about West Virginia and Nickajack, shouldn't they be fighting for the north, they fought for them in our timeline, they don't own slaves, and their culture is Appalachian, not southern. Then when the war is over, be rewarded for their efforts with statehood, It would be interesting to have Nickajack as a state, even if it is only a little side detail to compliment the narrative.