@ hairysamarian: No Justin Beiber dude(he's Canadian)... much worse. Course I reckon Canadians are ashamed of him too...

At least Shatner is a good actor Makes hating Canada much easier as an American doesn't it

? You guys can have Michael Moore back by the way...
Okay I'm sorry for one thing: I gave you the plot of the novel piecemeal. Let's start over shall we? Just for your own peace of mind. Yes I care

!
Okay the "Time travel" is a bit inaccurate. Consider Quantum Theory: The idea of multiple universes of every possibility. In this I'm assuming that there is a parallel universe based in the year 1775. But there's one difference between this universe and our character's universe(which is identical to our universe except practical physics is much more advanced which explains how our protaganist can travel to other universes but I digress this is quite immaterial so just ignore it). The Ottoman Empire doesn't exist! It's replaced with a resurgent Byzantine Empire. For your info it encompasses the Balkans, Anatolia, the Lavant, Egypt, North Africa, and Italy. You can explain the resurgence anyway you want. The history of the Byzantine resurgence won't be mentioned. I'll leave it to the readers' imagination. The Byzantines will get in friendly terms with the Americans and be a secondary ally in the war with the French, supplying some money and military advisors, though obviously not needed they're accepted for diplomatic reasons: It's nice to have an ally in the Med. They'll harass the French there. I might have a Lafayete-like character arise from the Byzantines to replace the young French noble. It should be noted the the Byzantine Empire is in a much better situation than the Ottoman Empire of our timeline: There's little natural hostility from Europe, they're still considered the protector of Europe. The Byzantine Government is a Constitutional Monarchy in the British vein. That's the only difference between our universes prior to our arrival. It should be noted that I am out of my element outside of US History.
Differences stemming from our arrival: Of course Canada will fall, that's a given. The Yorktown-like victory will be at Halifax(Where General Howe retreated(or maybe advanced to the rear

) after the Siege of Boston)(July 23 1776). France, due to that damn French-Canadian, declares war on America(June 28 though the message doesn't arrive in America until July 22). Spain declares war on the US(June 30 1776). Britain accepts American Independence in the Treaty of Constantinople and signs an "alliance" of sorts with the US(sorta like the situation between the western Allies and the Soviets during WW2, the enemy of my enemy is my "friend". "Let's deal with the damned French first." Americans say. The British say something much more dignified but the sentiment is the same)(Dec '76). That's the end of the first section of the book. Actually the negotiations are covered in the next section. The first section ends just after the main character's meeting with General Howe as he collects his thoughts.
The next section shows the negotiations taking place in Constantinople between British and American diplomats and moderated by the Byzantines and Russians. The main character is there to represent his group. Several weeks later(sped up by the fact that the main character had a copy of our timeline's Treaty of Paris+ the cession of Canada and Florida to the US it was generally agreed to with some modification). The day after it was signed British and Byzantines(who were more ethusiastic understandably then the British) agreed to and alliance to deal with the Franco-Spanish Alliance.
As our main character arrives back in America he receives disturbing news that the French landed 10K men in South Carolina and was causing trouble down there. Not only that but the Spanish launched an expedition from New Orleans into what would become the State of Mississippi. Not only that but they were taking a leaf out of the Swamp Fox's book and avoiding all direct contact with the enemy! Someone tipped them off... The French Canadian, but they don't know it yet...
To counter these moves our main character dispatches an expedition to the south to link up with the force still in Florida and moves west to deal with the Spanish and secure New Orleans. Then the main character and Washington lead the main force into South Carolina. Regardless of initial success it takes 4 years to clear all the French forces. There's very high casuality rates. It's akin to Vietnam!
Well by 1780 King Louis XVI has had enough and the French people never wanted to go to war against America in the first place. This will sow the seeds for later problems in France. Soon peace is declared. Spain cedes Louisianna to the US.
The book will go on until 1815 by the way.
I'm going to create a new thread in the ASB section.