India, July 11 -- Europe is once again sweltering.

The heatwave sweeping across the continent in July 2026 has revived familiar warnings from scientists and public health experts. Extreme heat is no longer regarded as an unusual weather event but as one of the fastest-growing threats to human health. Hospitals prepare for surges in heat-related illness, governments issue emergency advisories, and climate researchers increasingly describe heat as a silent disaster.

History, however, reminds us that this is not the first time oppressive temperatures have profoundly shaped human events.

Nearly 169 years ago, during the First War of Indian Independence in 1857, another army found itself fighting not only an enemy but also the relentless In...