Age: Tool
Prerequisites: First build a Town Center, then build a Storage Pit.
Cost: Infantry: 75 Food Cavalry: 125 Food Archery: 100 Food
Benefit: Leather Armor for Archers = +2 armor for Archery Range Units Leather Armor for Infantry = +2 armor for Barracks and Academy Units. Leather Armor for Cavalry = +2 armor for Stable Units.
Research At: Storage Pit
