The Black Death shattered assumptions of stability faster than any war

Tuchman treats the plague's arrival in the late 1340s as the single most transformative event of the century, killing so much of the population in such a short span that ordinary social bonds—labor markets, family structures, religious authority—buckled almost overnight. She emphasizes the sheer speed of the die-off: entire villages emptied, fields went unharvested, and the customary rituals for burying and mourning the dead broke down because there were too many bodies and too few survivors to observe them. This wasn't a gradual decline absorbed by institutions; it was a shock that outran every mechanism society had for coping with loss. Survivors were left disoriented, suspicious of authority, and often morally unmoored, since neither the Church nor medicine could explain or stop it. Tuchman uses this as her clearest illustration that catastrophe reveals what institutions are actually built to withstand, not what they claim to withstand. Takeaway: sudden, overwhelming disaster exposes the thinness of social order faster than any prolonged decline.