In the 1960s, a revisionist school of economic historians proved that limiting wheat exports would have made only a puny dent in the calamity.
Limiting wheat exports proved to be the best action to take.
mnli hypothesis: Limiting wheat exports proved to be the best action to take. premise: In the 1960s, a revisionist school of economic historians proved that limiting wheat exports would have made only a puny dent in the calamity.