|Build Cost||1 Builder's Expenditure|
|Can only be built on Grasslands, Plains and Floodplains|
Can be built on Grassland Hills and Plains Hills with Civil Engineering
+1 Food from every 2 adjecent farm tiles with Feudalism, becomes obsolete with Replaceable Parts
+1 Food from each adjecent farm tile with Replaceable Parts
+1 Food, +0.5 Housing. Can only be built on Grasslands, Plains and Floodplains. Can be built on Grassland Hills and Plains Hills with Civil Engineering. +1 Food from every 2 adjacent farm tiles with Feudalism, becomes obsolete with Replaceable Parts. +1 Food from each adjacent farm tile with Replaceable Parts.
Once people figured out that it was a lot easier to stay in one place and grow crops, rather than wander about gathering whatever happened to be growing, "civilization" broke out. Around 12.000 years ago, this was the "Neolithic Revolution". Farming meant that permanent settlements could be self-sustaining, and that the more food could be harvested, the bigger the settlements could grow. Ever since, advances in technology have been making agriculture more efficient: irrigation, machinery, fertilizers, pesticides, GMOs and so forth, yields skyrocketed.