Wheat is the grain that feeds cities and topples governments. The episode runs from the Populist revolt of the 1890s through the Dust Bowl and the birth of federal farm policy to grain as statecraft: Food for Peace, the 1972 grain deal, and the price spikes behind the 2008 unrest and the 2022 Black Sea grain crisis.
Analysts disagree on whether wheat prices drove the Arab Spring or were one pressure among many. Whether food is a legitimate weapon of statecraft is also contested, since the 1980 embargo mostly punished American farmers.



