I did have fun though I was struggled a bit and made quite a few mistakes. Below is how the rest of the game finished.
After the last update the Inca liked us and the french seemed poised to cause trouble. A few years later the french(De Gaulle) declared war on us. We weren't really prepared for a war as we had barely recovered economically and begun rebuilding the army. The empire was in dire straits. Could we survive?
Thankfully as we held the French back by the skin of our teeth the French(Louis), the Americans and the Inca decided they had enough of De Gaulle and all declared war on him!
With the help of all these nations the French(De Gaulle) began collapsing on all sides and Charles took advantage to actually grow the empire slightly as De Gaulle collapsed completely and was eliminated.
After that we continued to strengthen the empire. As we teched up we realized with horror we had no coal and later no oil anywhere in the empire
The AI seemed unwilling the trade either with us, even the Americans who we had quickly become friendly with. We continued to nurture the relationship with America and eventually they traded us some coal for an arm and a leg.
As we slowly used the coal to build railroads we noticed that the far off Egyptian empire was nearing a cultural victory(only 50 more turns!). As Charles tried to mull over his options on how to handle this, the following happened.
As the War with the Inca progressed we realized we didn't have the strength to fight them. We had the tech but not the resources, we had no oil and thus no tanks. A while later we realized we also had no Aluminum, for modern tanks. What terrible luck!
As the fight went on we reached a stalemate and no way to get past the Inca to Egypt. Charles navy was a joke and a naval attack was out of the question. With Egypt closing in on the win, Charles came up with one last desperate plan....
While we couldn't build tanks we did have plenty of uranium, a strong military industrial complex and Egypt had just finished the Manhattan project....Was it a sign from above? Charles decided to go down a dark path building nukes, many, many nukes
As Charles prepared for one last ditch effort the French decided to cause trouble
Egypt was within 5 turns of winning so Charles ignored the French and launched over a dozen nukes at the nearest Egyptian city near to legendary culture.
While the nukes did a good job, knocking the city down to 2 population and clearing out all defenders, Charles had a pitiful navy and could not land a marine to raze the city. His gambit had fallen short. As a result every civ left declared war on Charles, outraged at his massive use of nuclear arms.
Side Note: I have never tried mass nuking as I did, can you nuke a city into nothing? Or it will always survive with at least one pop?
As enemies pressed in on all side, cities began quickly falling as everyone had advanced tanks and Charles still did not have resources for advanced soldiers. It meant little, the Egyptians finished their victory as the other AI sat and watched, never once declaring war to even think of stopping them. Even refusing to listen when Charles had tried to form a coalition to attack Egypt.
Alas poor Charles, you were not strong enough....I also can't believe how few late game resources we had, even though I felt I had a good amount of land.
Is there a way to get the AI to do something about someone else winning? Do they just not care? They seemed to make zero effort to stop Egypt.
Sorry. 
map was unedited. I didn't check for late game strategic resources. 
Launch all nukes, Charles the Great shall never fall!
Nevermind, it created just small (relatively
) delay attacking Korean and then Roosvelt. Meanwhile Ramsses tried win culturally, so I had to react and declare on Egypt...few turn later I looked at victory screen and need medical help 
was there Luis in culture...so I grap half of my mighty army, finished Roosvelt and go after French...modern war in two fronts took so long, ach...fortunately, Stalin who before thought I ´m his worst enemy was pleased with me thanks to our mutual struggle(s)
(the AI really does suck at dealing with forests).
The last three AIs all tried to tech it, but with fewer and fewer cities they never got there. 
They refused the Cumae Gambit! 
And, therefore, in 1949, I crossed the Domination Victory threshold with 58.05% of the land. Are you kidding me!?!? 
Would you have been able to gift back another city to stay on the safe side?
