Used the save game, still some things that doesn't make up, the strangest is that you got ONE city the whole time... how come no one ever built an enemy city, surely Zulu must have sent boats and loaded off troops?
You break a lot or peace in the beginning which should make the computers to not trust you, when you met Zulu the first time 20AD and they had 10+ city and you just one... how could they accept peace?
3480 BC: Bulgarians declare war on Chinese
3060 BC: Bulgarians declare war on French
3040 BC: Bulgarians make peace with French
3040 BC: Bulgarians declare war on French
20 AD: Bulgarians make peace with Zulus
????
When I try to live in peace the computer even if in peace they always drop solders on my squares, demand more and more money/techs until I have nothing more and they declare war... you got one city and Zulu so many...
You build the right wonders, and republic early to get a lot of research early, but still one city on Emperor with Zulu huge.... how can you lead research with one city the whole time?
In your save game you got 2 NONE settler, nice... but you NEVER build a single city... how did you get them? you must build a city far away and then build a Settler to do this... how did you get two? and all the cities you conquer are destroyed so it cannot be them, you could have started with one extra settler but not 2 NONE extra Settlers
3060 BC: Bulgarians declare war on French
3060 BC: Orleans destroyed
3040 BC: Bulgarians declare war on French
3040 BC: Paris destroyed
3000 BC: Germans found the city of Berlin
3000 BC: Berlin destroyed
3000 BC: German civilization destroyed by Bulgarians
How come no one declared war on you? and even if they didn't at least they drop off troops on your land and block resources.
The map looks strange also, you have discovered land that isn't natural, an island and you see some water outside it that is not by boat or land unit, only flight.... which is possible you had a carrier and sent out a bomber to check the island... still looks strange, like switch nation and get their map too.
Did you modify and gave Bulgaria a lot of money? or any other tweaks?
Super strange with one city only, and not even a single river or alike, just plain and a lot of worthless water, the location of your only city isn't even good, and still you manage to beat off all on your island, research the good technology, keep peace with crazy Zulu and still lead the tech race... send a spaceship, build carries, bombers, Battleship... to me it sounds like a modification to add money so you can have 100% tech and still buy a unit or building each turn?