Summary and Keywords
What role did drought play in the outbreak of the Mexican Revolution of 1910? Although historians of the Mexican Revolution acknowledge that the effects of drought helped catalyze it, they have not explored in any depth what connects drought to revolution. Instead, they usually subsume it within a more general discussion of agricultural cycles to explain the conduct and fortunes of popular revolutionary armies. In particular, they reference the onset of drought between 1907 and 1909 as exacerbating an economic downturn induced by severe recession in the United States. By then, Mexico had become economically integrated with its northern neighbor through rapidly growing foreign investment, trade, and cross-border migration facilitated by the railroad transportation revolution. These socioeconomic and ecological factors together led to steep declines in wages and earnings, devastating crop failures, spikes in food prices (principally corn and beans), and even famine in the lower and middle classes.
Although suggestive, such passing references to drought in the historiography of the revolution do not furnish a clear picture of its effects and how they may have contributed to social and political conflict. In the 21st century, new technologies, methods, and sources—from historical meteorological reports and climate-related accounts gleaned from archival sources to modern historical climatological data reconstructions—facilitate doing more rigorous climate history. This article provides a sampling of these methods and sources on the role of drought in late 19th- and early 20th-century Mexico that can supplement, elucidate, and even revise our understanding of the origins of the Mexican Revolution.
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