Facilities
Build facilities around your city to receive production benefits.
A Barrack adds 200 Spearmen per turn.
An Armory adds 100 Swordsmen per turn.
A Lumbermill adds 200 Archers per turn.
A Stable adds 50 Cavalry per turn.
A Farm adds 200 supplies per turn.
A Market increases the maximum supply capacity by 500.
An Inn increases the maximum number of Spearmen by 200.
A Library speeds up Tech Tree research.