Egyptian Conquest: Playing as Egypt, get conquered by Assyria, Persia, Greece, Rome, Arabia, Ottoman, and England
IMPERIVM ROMANVM: Playing as Rome, conquer Carthage, the Celts, Greece, and Egypt then get conquered by the Huns 503 turns later
Holy Roman Empire: Playing as Germany or Austria, establish the Holy Roman Empire and become the emperor/empress
Great Britain: Playing as England, establish the Act of Union by the year 1707
La royale: Playing as France, beat England in naval might
Normandie: Playing as England or America, liberate France in 1944
Nein!: Playing as Germany, take down the Berlin Wall
No More Qing!: Playing as China, remove the dynasty and establish a republic
Mexica: Playing as the Aztecs, get conquered by Hernán Cortés as a Spanish Great General
Terror!: Playing as America, create a unit to fight against the Russians and declare war on that unit 20 turns later
The Future: Make an Alien and an XCOM unit fight to the death