|Age Available||Tool Age|
|Stats||Farms +75 Food|
It is recommended to get this upgrade before building any farms, as the upgrade cannot improve the productivity of farms that were already built. To research more farming upgrades such as the plow and irrigation, this economic upgrade must be researched.
|AoE Market Technologies|
|Woodworking | Stone Mining | Gold Mining | Domestication | Artisanship | Wheel | Plow | Craftsmanship | Siegecraft | Coinage | Irrigation|