[Thanks to Tigranes for the wonderful suggestion of getting Alexandria early. I did not use the somewhat gimmicky Iceland galley flip which detracts too much from stability, but used my trademark gimmick of capturing capitals at start. If one wants to combine these two techniques one can probably get even earlier without having to research Astronomy.]
So extending my observations about the idiotic AI behavior of moving ALL their units except for a couple settlers (which is even more idiotic since they'll be captured) from their capital, I decided to conquer England AND Spain this time. All troops go towards Spain and Alexandria, and 2 longbows sit on the dyed forest NW of Alexandria until Arabia decided to sacrifice their troops weakening the longbow and pike there. 2 longbows go to the sheep 1NE of Madrid, and 1 axeman with a warrior built from Inverness goes to just south of the Thames. Madrid and London are duly captured. And even though there are newly spawned troops for the newly dead civs, they will make peace long before these troops get close to your cities. Spain will even give you Monotheism.

Then they fade away from history... Rhye really needs to fix this stupid AI behavior.
Really lucky and got calendar with the hut in Sweden, but it meant I had to whip lots of libraries around. Compass, guilds, optics, astronomy, then 0% science. Got Mali, Aztecs and Khmer as voluntary vassals, capitulated Inca. First city in the West Indies in 1300, liberated to the Aztecs.
The good thing about getting lots of good land is that you can have plenty of production. Plenty of production means plenty of ships produced. But, as Tigranes points out, with England gone, where to find targets?
Prime realization: There is no rule saying you can't give ships to your opponents so that you can sink them!

Subprime realization: you can still build triremes even after astronomy, and triremes have no bonus against galleons or caravels!
So I gave tons of galleys (promoted only with 10% chances withdrawal, i.e. useless against attack) to the Dutch, DOW, sank them all the same turn, then gave my damaged triremes to the French, DOW, and sank them all with my galleons/caravels! Even gave a wounded caravel to the Portuguese and sank it with an undamaged trireme which made my 25th ship.
Built Wat Preah Pisnulok, Sistine Chapel, Univ of Sankore. Just got constitution in 1500.