Which historical event would you change and why?

[King Henry V]

I would change the Fall of Constantinople.... Because it's a shame such a big and splendid city has fallen in the hands of the Turks..... I voted this because the Byzantines are my favourite nation in the world(in the game also!!!)....

Cheers!

Or that Dukas had not run away at Manzikert and the Turk would have been defeated. By 1453 the fall of the Eastern Roman Empire was inevitable, and even if the siege had failed, the Ottomans would have been back with yet more troops.