Question

Historiographical consensus long framed the nineteenth-century displacement of contagionist disease models by miasmatic theory as a triumph of nascent scientific empiricism over dogmatic superstition. More recently, however, scholars have reconstructed the debate as profoundly ideological, illustrating that miasmatic theory—which attributed epidemiological outbreaks to localized atmospheric degradation rather than transmissible pathogens—found its most ardent proponents among progressive liberal reformers. For these reformers, contagionism’s requisite mechanisms of state intervention, namely quarantines and the restriction of mobility, represented instruments of reactionary authoritarianism diametrically opposed to free-trade capitalism. It is within this context that early sanitary reformers repeatedly invoked the porous and ultimately disastrous military cordons sanitaires erected during the 1832 Paris cholera epidemic. By weaponizing the conspicuous failure of these martial quarantines, miasmatists did more than cite an epidemiological anomaly; they forged a compelling rhetorical synthesis wherein the rejection of coercive state containment was simultaneously validated by medical observation and mandated by liberal economic doctrine.

The author's reference to the "military cordons sanitaires erected during the 1832 Paris cholera epidemic" serves primarily to do which of the following?