Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Against Odds	Finish Level 10 of The Babel Tower.
Anyone NOT called Spartacus around here?	Defeat The Slave Revolt.
Chieftain	Click the Main Button 100 times.
Clan	Have 50 Population.
Classical Era	Unlock Classical Era.
Emperor	Click the Main Button 50,000 times.
Expansionist 1	Have 3 Village Tiles.
Expansionist 2	Own 8 Villages.
Farmer 1	Own 3 Farmlands.
Farmer 2	Own 8 Farmlands.
Forester 1	Own 3 Forests.
Forester 2	Own 8 Forests.
Gluten is the future!	Overcome The Neolithic Revolution.
Gods of Old	Win the Babel Tower Scenario.
Horde	Have 1,000 Population.
I love the smell of pea soup in the morning	Defeat the Great Smog.
Industrial Era	Unlock Industrial Era.
King	Click the Main Button 5,000 times.
Know-it-all	Unlock all Ascensions.
Look on my Works, ye Mighty, and despair!	Have ten Activated Pyramids.
Mason 1	Own 3 Quarries.
Mason 2	Own 8 Quarries.
Medieval Era	Unlock Medieval Era.
Modern Era	Unlock Modern Era.
No Cost is Too High	Finish Level 20 of The Babel Tower.
Penicilin is for losers	Defeat the Great Plague.
Power of Hundred	Have 10,000 Population.
Quite a few People	Have 100,000 Population.
Renaissance Era	Unlock Renaissance Era.
Spiraling Hubris	Finish Level 15 of The Babel Tower.
Venting some Constitutional Steam	Overcome the Great Revolution.
War to end all wars. Maybe except one or two...	Win the World War.
Warlord	Click the Main Button 1,000 times.
Warrior 1	Defeat 1 Crisis.
Warrior 2	Defeat 10 Crises.
Warrior 3	Defeat 100 Crises.
Warrior 4	Defeat 1,000 Crises.